康永秀生

職位

教授

専門領域

  • 臨床疫学
  • 医療経済・政策学
  • 公衆衛生学

研究内容

  • リアルワールドデータを用いた臨床疫学研究
  • 観察データにおける応用統計
  • 医療サービスの経済評価／医療政策評価

 略歴

 免許・資格等

  • 日本臨床疫学会上席専門家
  • 医学博士（東京大学）

 所属学会

  • 日本臨床疫学会，日本疫学会，医療経済学会，日本公衆衛生学会

役職

  • 日本臨床疫学会理事

  • 日本臨床疫学会学術誌『Annals of Clinical Epidemiology』編集長

  • 医療経済学会学術誌『医療経済研究』編集委員

受賞

  • 平成25年11月　日本医師会研究奨励賞

著書

  1. 必ずアクセプトされる医学英語論文―完全攻略50の鉄則，金原出版，2016
  2. できる！臨床研究　最短攻略50の鉄則．金原出版．2017
  3. 健康の経済学．中央経済社．2018
  4. できる！傾向スコア分析－SPSS, Stata, Rを用いた必勝マニュアル．金原出版．2018
  5. 超入門！スラスラわかる　リアルワールドデータで臨床研究．金芳堂．2019
  6. 超絶解説！医学論文の難解な統計手法が手に取るようにわかる本．金原出版．2019
  7. 経済学を知らずに医療ができるか!? 医療従事者のための医療経済学入門. 金芳堂．2020
  8. 医療概論 (系統看護学講座). 医学書院. 2021
  9. 必ずアクセプトされる医学英語論文 パワーアップ！改訂版．金原出版．2021
  10. 必ず読めるようになる医学英語論文 究極の検索術×読解術．金原出版．2021
  11. そろそろ医療の費用対効果を考えてみませんか? 医療関係者のための医療経済評価入門.中外医学社.2021
  12. 重見大介, 岩上将夫, 康永秀生. 膨大な医学論文から最適な情報に最短でたどり着くテクニック. 新興医学出版社. 2021
  13. 橋本洋平, 山名隼人, 康永秀生. 統計手法のしくみを理解して医学論文を読めるようになる本. 新興医学出版社. 2021
  14. 麻生将太郎, 森田光治良, 康永秀生. 医学論文、わからないのは統計だけ?肝心要の研究デザインがわかる本. 新興医学出版社. 2022
  15. 石丸美穂, 大野幸子, 康永秀生. ゼロからわかる歯科臨床論文を読み解く方法 Evidence-based dentistryの実践のために. 新興医学出版社. 2022
  16. 岩上将夫, 浜田将太, 康永秀生. 医薬品に関する臨床系論文の読み方 ランダム化比較試験からリアルワールドデータ研究まで. 新興医学出版社. 2022
  17. 康永秀生. 目の前の患者からはじまる臨床研究: 症例報告からステップアップする思考術.金原出版. 2023
  18. 森田光治良, 康永秀生. 医学・看護論文を読み解いて臨床に活かす方法　Evidence-based Medicine/Nursingのすべて. 新興医学出版社. 2024

論文

[2024]

  1. Endo M, Konishi T, Yamana H, Jo T, Ishikawa T, Yasunaga H. Association of the Japanese herbal kampo medicine kakkonto with antibiotic use and surgical drainage for non-infectious mastitis: A nationwide database study. The Journal of Obstetrics and Gynaecology Research. 2024;50(1):113-119.
  2. Hirano Y, Konishi T, Kaneko H, Itoh H, Matsuda S, Kawakubo H, Uda K, Matsui H, Fushimi K, Daiko H, Itano O, Yasunaga H, Kitagawa Y. Antimicrobial prophylaxis with ampicillin-sulbactam compared with cefazolin for esophagectomy: Nationwide inpatient database study in Japan. Annals of Surgery. 2024;279(4):640-647.
  3. Kanda N, Ohbe H, Jo T, Matsui H, Fushimi K, Hatakeyama S, Yasunaga H. Trends in inpatient antimicrobial consumption using days of therapy and days of antibiotic spectrum coverage: A nationwide claims database study in Japan. Journal of Infection and Chemotherapy. 2024;30(3):228-235.
  4. Karakawa R, Konishi T, Yoshimatsu H, Hashimoto Y, Matsui H, Fushimi K, Yano T, Yasunaga H. Association between Body Mass Index and Outcomes after Autologous Breast Reconstruction: A Nationwide Inpatient Database Study in Japan. Breast Cancer Research and Treatment. 2024;204(1):69-78.
  5. Kishihara Y, Kashiura M, Yasuda H, Kitamura N, Nomura T, Tagami T, Yasunaga H, Aso S, Takeda M, Moriya T; SOS-KANTO 2017 Study Group. Association between institutional volume of out-of-hospital cardiac arrest cases and 30-day neurological outcome: A prospective observational study from a multicenter registry. American Journal of Emergency Medicine. 2024;75:65-71.
  6. Konishi T, Inokuchi H, Sasabuchi Y, Matsui H, Tanabe M, Seto Y, Yasunaga H. Association between Care-need level after Discharge and Long-term Outcomes in 7491 Patients requiring Rehabilitation for Stroke. JMA Journal. 2024;7(1):52-59.
  7. Maki W, Michihata N, Hashimoto Y, Matsui H, Fushimi K, Yasunaga H. Noninvasive Positive Airway Pressure Management for Post-extubation Support in Preterm Infants: Observational Cohort Study with Overlap Weighting Analysis. Annals of Clinical Epidemiology. 2024;6(1):17-23.
  8. Ogawa T, Tsuzuki S, Ohbe H, Matsui H, Fushimi K, Yasunaga H, Kutsuna S. Analysis of differences in characteristics of high-risk endemic areas for contracting Japanese spotted fever, tsutsugamushi disease, and severe fever with thrombocytopenia syndrome. Open Forum Infectious Diseases. 2024;11(2):ofae025
  9. Okada A, Kaneko H, Konishi M, Kamiya K, Sugimoto T, Matsuoka S, Yokota I, Suzuki Y, Yamaguchi S, Itoh H, Fujiu K, Michihata N, Jo T, Matsui H, Fushimi K, Takeda N, Morita H, Yasunaga H, Komuro I. A machine-learning based prediction of non-home discharge among acute heart failure patients. Clinical Research in Cardiology. 2024;113(4):522-532.
  10. Sato M, Yamana H, Ono S, Ishimaru M, Matsui H, Yasunaga H. Amoxicillin vs third-generation cephalosporin for infection prophylaxis after third molar extraction. Oral Diseases. 2024;30(2):660-668.
  11. Sone M, Yasunaga H, Osawa M, Takeguchi Y, Han A, Akiyama N, Kamiya M, Woodhams R, Yoshimatsu R, Nakatsuka A, Kakeda S, Takase K, Mimura H, Yamakado K. Impact of work environment on job satisfaction among interventional radiologists in Japan: a cross-sectional study. Interventional Radiology. 2024;9(1):13-19.
  12. Suzuki T, Michihata N, Hashimoto Y, Yoshikawa T, Saito K, Matsui H, Fushimi K, Yasunaga H. Association between aspirin dose and outcomes in patients with acute Kawasaki disease: A nationwide retrospective cohort study in Japan. European Journal of Pediatrics. 2024;183(1):415-424.
  13. Suzuki Y, Kaneko H, Okada A, Fujiu K, Jo T, Takeda N, Tanaka A, Node K, Morita H, Yasunaga H, Komuro I. Benign prostate hyperplasia and incident cardiovascular disease. Circulation Journal. 2024;88(3):408-416.
  14. Tada H, Kaneko H, Suzuki Y, Okada A, Takeda N, Fujiu K, Morita H, Ako J, Node K, Takeji Y, Takamura M, Yasunaga H, Komuro I. Familial hypercholesterolemia is related to cardiovascular disease, heart failure and atrial fibrillation. Results from a population-based study. Eur J Clin Invest. 2024;54(2):e14119.
  15. Tada H, Kaneko H, Suzuki Y, Okada A, Takeda N, Fujiu K, Morita H, Ako J, Node K, Takeji Y, Takamura M, Yasunaga H, Komuro I. Association between Remnant Cholesterol and Incident Atherosclerotic Cardiovascular Disease, Heart Failure, and Atrial Fibrillation. Journal of Clinical Lipidology. 2024;18(1):3-10.
  16. Uchida M, Jo T, Okada A, Matsui H, Yasunaga H. Effectiveness and Safety of Non-vitamin K Antagonist Oral Anticoagulants in Patients with Atrial Fibrillation at Low Risk of Stroke in Japan: A Retrospective Cohort Study. European Heart Journal – Cardiovascular Pharmacotherapy. 2024;10(1):20-26.
  17. Yamana H, Okada A, Ono S, Michihata N, Jo T, Yasunaga H. Machine learning-based models for outpatient prescription of Kampo formulations: an analysis of a health insurance claims database. Journal of Epidemiology. 2024;34(1):8-15.
  18. Zhou HP, Hashimoto Y, Araki F, Sugimoto K, Nagahara M, Matsui H, Fushimi K, Yasunaga H, Aihara M, Toyama T, Ueta T. Recent Trends in the Cumulative Incidence and Intervention Patterns of Retinopathy of Prematurity in Japan: A Multi-Center Analysis, 2011–2020. RETINA. 2024;44(2):295-305.
  19. Honda A, Iizuka Y, Michihata N, Uda K, Mieda T, Takasawa E, Ishiwata S, Kakuta Y, Tomomatsu Y, Ito S, Inomata K, Matsui H, Fushimi K, Yasunaga H, Chikuda H. Effect of Intraoperative Tranexamic Acid on Perioperative Massive Hemorrhage Requiring Transfusion in Patients Undergoing Elective Spine Surgery: A Propensity Score-Matched Analysis Using a National Inpatient Database. Global Spine Journal. 2024
  20. Honda A, Iizuka Y, Tokue M, Takasawa E, Ishiwata S, Tomomatsu Y, Ito S, Inomata K, Okada A, Matsui H, Yasunaga H, Chikuda H. Association between early surgery and postoperative opioid use in patients with lumbar disc herniation: a propensity score-matching analysis using an administrative claims database in Japan. Global Spine Journal. 2024
  21. Nagasawa H, Kaneko H, Suzuki Y, Okada A, Fujiu K, Takeda N, Morita H, Nishiyama A, Yano Y, Node K, Viera AJ, Carey RM, Oparil S, Yasunaga H, Touyz RM, Komuro I. Association of cancer with the risk of developing hypertension. EHJ-Quality of Care and Clinical Outcomes. 2024
  22. Jo T, Shigemi D, Konishi T, Yamana H, Michihata N, Kumazawa R, Yokoyama A, Urushiyama H, Matsui H, Fushimi K, Nagase T, Yasunaga H. Antiemetic effect of Rikkunshito, a Japanese Kampo herbal medicine, on cisplatin-induced nausea and vomiting; a nationwide database study in Japan. Internal Medicine. 2024
  23. Ida T, Ikeda K, Ohbe H, Nakamura K, Furuya H, Iwamoto T, Furuta S, Miyamoto Y, Nakajima M, Sasabuchi Y, Matsui H, Yasunaga H, Nakajima H. Early initiation of angiotensin-converting enzyme inhibitor in patients with scleroderma renal crisis: A nationwide inpatient database study. Rheumatology. 2024
  24. Kitaoka H, Konishi T, Shitara Y, Ito A, Kashima K, Hashimoto Y, Matsui H, Kato M, Takahashi N, Yasunaga H. Treatments and outcomes of neonatal disseminated intravascular coagulation with and without neonatal asphyxia: A retrospective study using nationwide data in Japan.  Pediatrics & Neonatology. 2024
  25. Setogawa N, Ohbe H, Matsui H, Yasunaga H. Impact of Hospital Volume on Long-term Outcomes after Endovascular Therapy for Peripheral Artery Disease. Journal of Endovascular Therapy. 2024
  26. Fujita A, Konishi T, Sakata R, Hashimoto Y, Yasunaga H, Aihara M. Cost-effectiveness analysis of prophylactic laser peripheral iridotomy for primary angle-closure suspect in Japan. Eye. 2024
  27. Suzuki Y, Kaneko H, Okada A, Ohno R, Yokota I, Fujiu K, Jo T, Takeda N, Morita H, Node K, Yasunaga H, Komuro I. Comparison of SGLT2 inhibitors vs. DPP4 inhibitors for patients with metabolic dysfunction associated fatty liver disease and diabetes mellitus. Journal of Endocrinological Investigation. 2024
  28. Seo K, et al. Sex Differences in the Association between Depression and Incident Cardiovascular Disease. JACC: Asia. 2024
  29. Yamakawa K. Current clinical practice of laboratory testing of the hemostasis and coagulation system in patients with sepsis: a nationwide observational study in Japan. JMA Journal. 2024
  30. Hashimoto Y, Iwagami M, Yamana H, Ono S, Takeuchi Y, Michihata N, Uemura K, Aihara M, Yasunaga H. Ocular adverse events after influenza vaccination in older adults: self-controlled case series using a large database in Japan. Ophthalmic Epidemiology. 2024
  31. Yamana H, Tsuchiya A, Horiguchi H, Fushimi K, Jo T, Yasunaga H. Microbiological findings in patients with community-acquired pneumonia: an analysis using the National Hospital Organization Clinical Data Archives. Journal of Infection and Chemotherapy. 2024
  32. Kutsukake M, Konishi T, Fujiogi M, Takamoto N, Morita K, Yasuhisa I, Hashimoto Y, Matsui H, Fushimi K, Fujishiro J, Yasunaga H. Treatment courses and outcomes of esophageal atresia in patients with trisomy 18: A case-series of 271 patients from a nationwide database in Japan. Archives of Disease in Childhood. 2024
  33. Sato M. Effect of periodontal therapy on glycemic control in type 2 diabetes. Journal of Clinical Periodontology. 2024
  34. Kimura Y, Suzukawa M, Jo T, Hashimoto Y, Kumazawa R, Ishimaru M, Matsui H, Yokoyama A, Tanaka G, Yasunaga H. Epidemiology of severe childhood asthma in Japan: a nationwide descriptive study. Allergy. 2024
  35. Yasaka T, et al. Impact of the health policy for interdisciplinary collaborative rehabilitation practices in intensive care units: A difference-in-differences analysis in Japan. Intensive & Critical Care Nursing. 2024
  36. Takiguchi T, et al. Association between postoperative adjuvant vasodilator therapy and in-hospital mortality for non-occlusive mesenteric ischemia: A nationwide observational study. Journal of Nippon Medical School. 2024
  37. Komuro H, et al. Sex Differences in the Relationship between Schizophrenia and the Development of Cardiovascular Disease. JAHA. 2024
  38. Suzuki Y, et al. Association of Cancer and Its Interaction with Conventional Risk Factors on Cardiovascular Disease Risk. Oncology. 2024
  39. Hamada T, et al. The optimal age to discontinue long-term surveillance of intraductal papillary mucinous neoplasms: comparative cost-effectiveness of surveillance by age. Gut. 2024
  40. Tanaka C, et al. Changes over 7 years in temperature control treatment and outcomes after out-of-hospital cardiac arrest: a Japanese multicenter cohort study. Therapeutic Hypothermia and Temperature Management. 2024
  41. Sato S, et al. Association Between Subjective Physical Function and Occurrence of New Fractures in Older Adults: A Retrospective Cohort Study. Geriatrics & Gerontology International. 2024
  42. Mizuguchi Y, et al. Clinical features and outcomes of Shoshin Beriberi: a retrospective nationwide database study. International Heart Journal. 2024
  43. Ono S, et al. Weight loss and functional decline in older Japanese people: A cohort study using large-scale claims data. Archives of Gerontology and Geriatrics. 2024
  44. Ueno K, et al. Metabolic syndrome and cardiovascular disease in cancer survivors. Journal of Cachexia, Sarcopenia and Muscle. 2024
  45. Ueno K, et al. Change in Body Mass Index and Cardiovascular Outcomes in Cancer Patients. Mayo Clinic Proceedings. 2024
  46. Okada A, et al. Modification effect of receipt of diabetes care on the association between COVID-19 infection and HbA1c level during the first year of the coronavirus pandemic using a nationwide population-based database. Journal of Diabetes Investigation. 2024
  47. Kutsuna S, et al. Analysis of the effectiveness of combination antimicrobial therapy for Legionnaires’ Disease: A nationwide inpatient database study. International Journal of Infectious Diseases. 2024
  48. Suzuki Y, et al. Awareness of Being Prescribed Antihypertensive Medications and Cardiovascular Outcomes. Circulation Journal. 2024
  49. Suzuki Y, et al. Comparison of Incident Hypertension between SGLT2 inhibitors vs. DPP4 inhibitors. Hypertension Research. 2024
  50. Unoki Y, et al. Exploring the influence of a financial incentive scheme on early mobilization and rehabilitation in ICU patients: An interrupted time-series analysis. BMC Health Services Research. 2024
  51. Ohshima Y, et al. Postoperative complications of surgery for cervical spondylotic myelopathy with and without athetoid cerebral palsy. Global Spine Journal. 2024
  52. Isogai T, et al. Utilization of Japanese Herbal Kampo Medicine in Patients with Acute Cardiovascular Disease: A 12-year Nationwide Cohort Analysis. Circ J. 2024
  53. Suzuki Y, et al. Comparison of kidney outcomes between SGLT2 inhibitor and GLP-1 receptor agonist in people with diabetes mellitus. Diabetes, Obesity and Metabolism. 2024
  54. Suzuki Y, et al. Risk of Cancer History in Cardiovascular Disease among Individuals with Hypertension. Hypertension Research. 2024
  55. Koizumi M, et al. Impact of COVID-19 Pandemic on the Number of Otolaryngologic Surgeries in Japan. Auris Nasus Larynx. 2024
  56. Matsuo Y, et al. Clinical Efficacy of Beta-1 Selective Beta-blockers versus Propranolol in Patients with Thyroid Storm: a Retrospective Cohort Study. Critical Care Medicine. 2024
  57. Kou T, et al. Applying the HARMS2-AF Risk Score for Japanese population: An analysis of a nationwide epidemiological dataset. European Journal of Preventive Cardiology. 2024
  58. Taniguchi J, et al. Endobronchial Silicone Spigot in Prolonged Air Leaks: Nationwide Study on Outcomes and Risk Factors for Treatment Failure. Respiratory Investigation. 2024
  59. Wada Y, et al. Treatment strategies for pelvic organ prolapse and postoperative outcomes in older women with long-term care needs: A population-based retrospective cohort study. International Journal of Gynecology and Obstetrics. 2024
  60. Aoki M, et al. Association between gasping and survival among out-of-hospital cardiac arrest patients undergoing extracorporeal cardiopulmonary resuscitation: the SOS-KANTO 2017 study. Resuscitation Plus. 2024
  61. Matsuo Y, et al. Potassium Iodide Use and Patient Outcomes for Thyroid Storm: An Observational Study. Journal of Clinical Endocrinology & Metabolism. 2024
  62. Komuro H, et al. Unawareness of Being Prescribed Medications for Diabetes and Incident Cardiovascular Disease. J Cardiol.
  63. Obikane E, et al. Association between perinatal mood disorders of parents and child health outcomes. Archives of Women’s Mental Health. 2024
  64. Kimura Y, et al. Epidemiology of patients with lymphangioleiomyomatosis: A descriptive study using the National Database of Health Insurance Claims and Specific Health Checkups of Japan. Respiratory Investigation. 2024
  65. Ishida R, et al. Impact of Government-issued Financial Incentive to medical facilities on Management of Secondary Dysmenorrhea. Journal of Obstetrics and Gynaecology Research. 2024
  66. Kaneko H, et al. Association of Inflammatory Bowel Disease with Incident Immunoglobulin A Nephropathy. CJASN. 2024

[2023]

  1. Akaba T, Jo T, Iwagami M, Hashimoto Y, Matsui H, Fushimi K, Tagaya E, Yasunaga H. Reduced asthma exacerbations in adult patients treated with bronchial thermoplasty. Journal of Allergy and Clinical Immunology: In Practice. 2023;11(10):3076-3083.e3.
  2. Amagasa S, Uematsu S, Kubota M, Kashiura M, Yasuda H, Hayakawa M, Yamakawa K, Endo A, Ogura T, Hirayama A, Yasunaga H, Tagami T. Relationship between institutional ventilated COVID-19 case volume and in-hospital death: A multicenter cohort study PLoS One. 2023 ;18(6):e0287310.
  3. Aoki M, Aso S, Suzuki M, Tagami T, Sawada Y, Yasunaga H, Kitamura N, Oshima K; behalf of the SOS-KANTO 2017 Study Group. Association between obesity and neurological outcomes among out-of-hospital cardiac arrest patients: the SOS-KANTO 2017 study. Resuscitation Plus. 2023:17:100513.
  4. Aso S, Ono S, Michihata N, Uemura K, Yasunaga H. Effectiveness of vaccination on influenza-related critical illnesses in the elderly population. Journal of Infection and Chemotherapy. 2023;29(6):576-579.
  5. Awano N, Jo T, Izumo T, Inomata M, Morita K, Matsui H, Fushimi K, Urushiyama H, Nagase T, Yasunaga H. Efficacy of initial high- versus low-dose intravenous corticosteroid therapy in patients with acute exacerbation of idiopathic interstitial pneumonia: A nationwide observational study. Annals of Clinical Epidemiology. 2023;5(2):37-47.
  6. Awano N, Jo T, Izumo T, Inomata M, Ito Y, Hashimoto Y, Matsui H, Fushimi K, Urushiyama H, Nagase T, Yasunaga H. Hospital volume and outcomes following bronchoscopy in patients with interstitial lung disease: A retrospective observational study using a national inpatient database in Japan. Respiratory Investigation. 2023;61(6):720-728.
  7. Awano N, Jo T, Izumo T, Inomata M, Ito Y, Morita K, Matsui H, Fushimi K, Urushiyama H, Nagase T, Yasunaga H. Polymyxin B-immobilised fibre column treatment for acute exacerbation of idiopathic pulmonary fibrosis patients with mechanical ventilation: A nationwide observational study. Journal of Intensive Care. 2023;11(1):45.
  8. Endo M, Jo T, Konishi T, Kumazawa R, Matsui H, Yasunaga H. Association between Legionella Urinary Antigen Tests on Admission and Inhospital Mortality in Patients with Atypical Pneumonia: A Nationwide Database Study. International Journal of Mycobacteriology. 2023;12(3):350-356.
  9. Fujiogi M, Konishi T, Michihata N, Hashimoto Y, Matsui H, Ishimaru T, Fushimi K, Yasunaga H, Fujishiro J. Perioperative outcomes of thyroid cancer surgery in children and adults: a nationwide inpatient database study in Japan. Annals of Clinical Epidemiology. 2023;5(1):20-29.
  10. Fujita A, Hashimoto Y, Matsui H, Yasunaga H, Aihara M. Recent trends in treatment and associated costs of primary angle-closure glaucoma: A Retrospective Cohort Study. Ophthalmology Glaucoma. 2023;6(3):308-315.
  11. Fujita A, Sakata R, Hashimoto Y, Matsui H, Fushimi K, Yasunaga H, Aihara M. One-year costs of incisional glaucoma surgery and laser therapy. Annals of Clinical Epidemiology. 2023;5(2):48-57.
  12. Fujita A, Aoyama Y; Yamana H, Konishi T, Hashimoto Y, Aihara M, Yasunaga H. Validity of algorithms to identify patients with glaucoma using Japanese claims data. Journal of Glaucoma. 2023;32(4):307-312.
  13. Fujita A, Hashimoto Y, Okada A, Matsui H, Yasunaga H, Aihara M. Practice patterns and costs of glaucoma treatment in Japan. Japanese Journal of Ophthalmology. 2023;67(5):590-601.
  14. Fujita A, Hashimoto Y, Matsui H, Yasunaga H, Aihara M. Association between lifestyle habits and glaucoma incidence: a retrospective cohort study. Eye. 2023 ;37(16):3470-3476.
  15. Hamada T, Michihata N, Saito T, Iwashita T, Shiomi H, Takenaka M, Matsui H, Fushimi K, Isayama H, Yasuda I, Yasunaga H, Nakai Y. Inverse association of hospital volume with in-hospital mortality rate of patients receiving endoscopic ultrasound-guided interventions for pancreatic fluid collections. Gastrointest Endosc. 2023;98(4):597-606.e2.
  16. Hashimoto Y, Kaneko H, Aso S, Okada A, Matsui H, Yasunaga H, Aihara M, Obata R. Association between retinal vein occlusion and early-stage hypertension: a propensity score analysis using a large claims database. Eye. 2023 ;37(8):1741-1747.
  17. Hashimoto Y, Yamana H, Iwagami M, Ono S, Takeuchi Y, Michihata N, Uemura K, Yasunaga H, Aihara M, Kaburaki T. Ocular adverse events after COVID-19 mRNA vaccination: matched cohort and self-controlled case series studies using a large database. Ophthalmology. 2023;130(3):256-264.
  18. Hashimoto Y, Okada A, Matsui H, Yasunaga H, Aihara M, Obata R. Recent trends in anti-vascular endothelial growth factor intravitreal injections: A large claims database study in Japan. Japanese Journal of Ophthalmology. 2023 ;67(1):109-118.
  19. Hattori Y, Tahara S, Aso S, Makito K, Matsui H, Fushimi K, Yasunaga H, Morita A. Comparison of Prophylactic Antibiotics for Endonasal Transsphenoidal Surgery Using a National Inpatient Database in Japan. Journal of Antimicrobial Chemotherapy. 2023 ;78(12):2909-2914.
  20. Hayashi K, Sasabuchi Y, Matsui H, Nakajima M, Ohbe H, Fushimi K, Ono K, Yasunaga H. Additive effectiveness of acrylonitrile-co-methallyl sulfonate surface-treated membranes in treatment of pneumonia: A propensity score-matched retrospective cohort study. Artificial Organs. 2023 ;47(2):408-416.
  21. Hayashi K, Sasabuchi Y, Matsui H, Nakajima M, Otawara M, Ohbe H, Fushimi K, Ono K, Yasunaga H. Does early excision or skin grafting of severe burns improve prognosis? A retrospective cohort study. Burns. 2023;49(3):554-561.
  22. Hidaka T, Ikawa F, Michihata N, Onishi S, Matsuda S, Ozono I, Oku S, Takayanagi S, Fushimi K, Yasunaga H, Kurisu K, Horie N. Perioperative Surgical Risks in Patients With Hemangioblastomas: A Retrospective Nationwide Review in Japan. World Neurosurgery. 2023;170:e21-e27.
  23. Hikone M, Shibahashi K, Fukuda M, Shimoyama Y, Yamakawa K, Endo A, Hayakawa M, Ogura T, Hirayama A, Yasunaga H, Tagami T; J-RECOVER study group. Risk Factors Associated with Mortality among Mechanically Ventilated Patients with Coronavirus Disease 2019 Pneumonia: A Multicenter Cohort Study in Japan (J-RECOVER Study). Internal Medicine. 2023;62(15):2187-2194.
  24. Hirano Y, Konishi T, Kaneko H, Itoh H, Matsuda S, Kawakubo H, Uda K, Matsui H, Fushimi K, Daiko H, Itano O, Yasunaga H, Kitagawa Y. Proportion of Early Extubation and Short-term Outcomes after Esophagectomy: A Retrospective Cohort Study. International Journal of Surgery. 2023;109(10):3097-3106.
  25. Hirano Y, Konishi T, Kaneko H, Itoh H, Matsuda S, Kawakubo H, Uda K, Matsui H, Fushimi K, Daiko H, Itano O, Yasunaga H, Kitagawa Y. Early Postoperative Nonsteroidal Anti-inflammatory Drugs and Anastomotic Leakage After Oesophagectomy. British Journal of Surgery. 2023;110(2):260-266.
  26. Hirano Y, Kaneko H, Konishi T, Itoh H, Matsuda S, Kawakubo H, Uda K, Matsui H, Fushimi K, Itano O, Yasunaga H, Kitagawa Y. Impact of Body Mass Index on Major Complications, Multiple Complications, In-hospital Mortality, and Failure to Rescue Following Esophagectomy for Esophageal Cancer: A Nationwide Inpatient Database Study in Japan. Annals of Surgery. 2023;277(4):e785-e792.
  27. Hirano Y, Konishi T, Kaneko H, Itoh H, Matsuda S, Kawakubo H, Uda K, Matsui H, Fushimi K, Daiko H, Itano O, Yasunaga H, Kitagawa Y. Weight loss during neoadjuvant therapy and short-term outcomes after esophagectomy: A retrospective cohort study. International Journal of Surgery. 2023;109(4):805-812.
  28. Hirano Y, Konishi T, Kaneko H, Itoh H, Matsuda S, Kawakubo H, Uda K, Matsui H, Fushimi K, Daiko H, Itano O, Yasunaga H, Kitagawa Y. Impact of prophylactic corticosteroid use on in-hospital mortality and respiratory failure after esophagectomy for esophageal cancer: Nationwide inpatient data study in Japan. Annals of Surgery. 2023;277(6):e1247-e1253.
  29. Honda M, Yasunaga H, Michihata N, Miyakawa T, Kumazawa R, Matsui H, Imaizumi T. Impact of guideline recommendation for novel surgical procedures on surgeons’ decisions: A time series analysis of gastric cancer surgeries from a nationwide cohort study. International Journal of Surgery. 2023;109(3):316-322.
  30. Honda A, Iizuka Y, Michihata N, Morita K, Mieda T, Takasawa E, Ishiwata S, Kakuta Y, Tomomatsu Y, Ito S, Inomata K, Matsui H, Fushimi K, Yasunaga H, Chikuda H. Risk factors for early mortality in elderly patients with unstable isolated C2 odontoid fracture treated with halo-vest or surgery. Scientific Reports. 2023 ;13(1):17962.
  31. Ichita C, Nakajima M, Ohbe H, Kaszynski RH, Sasaki A, Miyamoto Y, Kondo Y, Sasabuchi Y, Fushimi K, Matsui H, Yasunaga H. Effectiveness of early colonoscopy in patients with colonic diverticular hemorrhage: A nationwide inpatient analysis in Japan. Digestive Endoscopy. 2023;35(4):520-528.
  32. Ishibashi T, Kaneko H, Matsuoka S, Suzuki Y, Ueno K, Ohno R, Okada A, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Node K, Yasunaga H, Komuro I. HDL cholesterol and clinical outcomes in diabetes mellitus. Eur J Prev Cardiol. 2023;30(8):646-653.
  33. Ishibashi T, Kaneko H, Ueno K, Morita K, Itoh H, Okada A, Kamiya K, Suzuki Y, Matsuoka S, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Ako J, Node K, Yasunaga H, Komuro I. Association between Early Initiation of Cardiac Rehabilitation and Short-Term Outcomes of Patients with Acute Heart Failure Admitted to Intensive Care Unit. American Journal of Cardiology. 2023;206:285-291.
  34. Ishimaru S, Michihata N, Kawamura Y, Uda K, Matsui H, Fushimi K, Yasunaga H, Yoshikawa T. Trend in the Numbers of Hospitalized Patients With Varicella, Herpes Zoster, and Ischemic Stroke in Japanese Individuals <20 Years of Age Before and After Implementation of Universal Varicella Vaccination. Pediatr Infect Dis J. 2023;42(7):626-628.
  35. Ishimaru T, Shinjo D, Fujiogi M, Michihata N, Morita K, Hayashi K, Tachimori H, Kawashima H, Fujishiro J, Yasunaga H. Risk factors for postoperative anastomotic leakage after repair of esophageal atresia: a retrospective nationwide database study. Surgery Today. 2023;53(11):1269-1274.
  36. Isogai T, Matsui H, Tanaka H, Makito K, Fushimi K, Yasunaga H. Incidence, management, and prognostic impact of arrhythmias in patients with Takotsubo syndrome: a nationwide retrospective cohort study. European Heart Journal: Acute Cardiovascular Care. 2023 ;12(12):834-846.
  37. Iwai C, Jo T, Konishi T, Fujita A, Michihata N, Matsui H, Fushimi K, Yasunaga H. Thrombotic risk of platinum combination chemotherapy with and without immune checkpoint inhibitors for advanced non-small cell lung cancer: a nationwide inpatient database study. Cancer Immunology, Immunotherapy. 2023;72(11):3581-3591.
  38. Iwai C, Jo T, Konishi T, Kumazawa R, Matsui H, Fushimi K, Yasunaga H. Comparative Safety and Effectiveness of Direct Oral Anticoagulants and Warfarin during Chemotherapy in Cancer Patients with Venous Thromboembolism Aged 75 Years or Older：A Nationwide Inpatient Database Study. Gerontology. 2023;69(5):561-570.
  39. Iwasaki Y, Ohbe H, Nakajima M, Sasabuchi Y, Ikumi S, Kaiho Y, Yamauchi M, Fushimi K, Yasunaga H. Association between intraoperative landiolol use and in-hospital mortality after coronary artery bypass grafting: A nationwide observational study in Japan. Anesthesia & Analgesia. 2023;137(6):1208-1215.
  40. Kameda S, Sasabuchi Y, Michihata N, Yamana H, Matsui H, Fushimi K, Yasunaga H, Kohro T.Prednisolone versus cyclosporine as initial treatment for Kawasaki disease. Pediatrics Intervational. 2023;65(1):e15658.
  41. Kanazawa S, Kaneko H, Yano Y, Suzuki Y, Okada A, Matsuoka S, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Node K, Yasunaga H, Komuro I. Sex Differences in the Association between Hypertension and Incident Atrial Fibrillation. JAHA. 2023 ;12(5):e026240.
  42. Kamei J, Sugihara T, Yasunaga H, Matsui H, Sasabuchi Y, Fujimura T, Homma Y, Kume H. Impact of early ureteral drainage on mortality in obstructive pyelonephritis with urolithiasis: an analysis of the Japanese National Database. World J Urol. 2023;41(5):1365-1371.
  43. Kaneko H, Yano Y, Okada A, Itoh H, Suzuki Y, Yokota I, Morita K, Fujiu K, Michihata N, Jo T, Yamaguchi S, Takeda N, Morita H, Node K, Yamauchi T, Nangaku M, Kadowaki T, McEvoy JW, Lam CSP, Yasunaga H, Komuro I. Age-Dependent Association between Modifiable Risk Factors and Incident Cardiovascular Disease. Journal of the American Heart Association. 2023;12(2):e027684.
  44. Kaneko H, Yano Y, Lee H, Lee HH, Okada A, Suzuki Y, Itoh H, Matsuoka S, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Nishiyama A, Node K, Kim HC, Yasunaga H, Komuro I. Blood Pressure Classification Using the 2017 ACC/AHA Guideline and Heart Failure in 33,991 Cancer Patients. Journal of Clinical Oncology. 2023;41(5):980-990.
  45. Kimura Y, Jo T, Inoue N, Suzukawa M, Tanaka G, Kage H, Kumazawa R, Matsui H, Fushimi K, Yasunaga H, Matsui H. Association between systemic corticosteroid use and mortality in patients with epiglottitis. Laryngoscope. 2023;133(2):344-349.
  46. Kitaoka H, Konishi T, Shitara Y, Ito A, Kashima K, Fujita A, Matsui H, Kato M, Takahashi N, Yasunaga H. Effects of milrinone on neonates after patent ductus arteriosus ligation: A retrospective nationwide database study. Neonatology. 2023 ;120(6):751-759.
  47. Kodama S, Jo T, Yasunaga H, Ohbe H, Michihata N, Matsui H, Okada A, Shirota Y, Fushimi K, Toda T, Hamada M. Perioperative use of intravenous levodopa as an anti-Parkinsonian drug: A propensity score analysis. Movement Disorders Clinical Practice. 2023 ;10(11):1650-1658.
  48. Konishi T, Tanabe M, Michihata N, Matsui H, Nishioka K, Fushimi K, Seto Y, Yasunaga H. Risk factors for arm lymphedema following breast cancer surgery: a Japanese nationwide database study of 84,022 patients. Breast Cancer. 2023;30(1):36-45.
  49. Konishi T, Ono S, Okada A, Matsui H, Tanabe M, Seto Y, Yasunaga H. Comparison of bleeding following gastrointestinal endoscopic biopsy in patients treated with and without direct oral anticoagulants. Endoscopy International Open. 2023;11(1):E52-E59.
  50. Konishi T, Sasabuchi Y, Matsui H, Tanabe M, Seto Y, Yasunaga H. Long-Term Risk of Being Bedridden in Elderly Patients Who Underwent Oncologic Surgery: A Retrospective Study Using a Japanese Claims Database. Ann Surg Oncol. 2023;30(8):4604-4612.
  51. Konishi M, Kaneko H, Itoh H, Matsuoka S, Okada A, Kamiya K, Sugimoto T, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Tamura K, Yasunaga H, Komuro I. Association of weight change and in-hospital mortality in patients with repeated hospitalization for heart failure. J Cachexia Sarcopenia Muscle. 2023;14(1):642-652.
  52. Konishi T, Fujiogi M, Sato M, Michihata N, Matsui H, Nishioka K, Tanabe M, Seto Y, Yasunaga H. Impact of the national action plan for antimicrobial resistance on antibiotic use for mastitis using a Japanese nationwide database. Breast Care. 2023;18(2):122-129.
  53. Kutsuna S, Ohbe H, Matsui H, Yasunaga H. Steroid pulse therapy for severe fever with thrombocytopenia syndrome patients may not improve prognosis: Retrospective analysis with overlap weighting using a national inpatient database. Journal of Infection and Chemotherapy. 2023;29(5):490-494.
  54. Matsumoto S, Tamiya H, Yamana H, Hosoi T, Matsui H, Fushimi K, Akishita M, Yasunaga H, Ogawa S. Association between the type of hypnotic drug and in-hospital fractures in older patients with neurocognitive disorders: A case-control study using a nationwide database. Geriatr Gerontol Int. 2023;23(7):500-505.
  55. Matsuo Y, Jo T, Makito K, Matsui H, Fushimi K, Yasunaga H. Association between use of transdermal tulobuterol and short-term outcomes in patients with stroke and underlying chronic obstructive pulmonary disease: a retrospective cohort study. Medicine. 2023;102(38):e35032.
  56. Miura S, Michihata N, Hashimoto Y, Matsui H, Fushimi K, Yasunaga H. Descriptive statistics and risk factor analysis of children with community-acquired septic shock. Journal of Intensive Care. 2023;11(1):6.
  57. Miyachi H, Konishi T, Hashimoto Y, Matsui H, Fushimi K, Inozume T, Yasunaga H. Clinical course and outcomes of pemphigus vulgaris and foliaceus: a retrospective study using a nationwide database in Japan. The Journal of Dermatology. 2023;50(2):212-221.
  58. Miyachi H, Konishi T, Hashimoto Y, Matsui H, Fushimi K, Inozume T, Matsue H, Yasunaga H. Trends in mortality and morbidity in patients with bullous pemphigoid before and after approval of intravenous immunoglobulin in Japan: an interrupted time-series analysis. Clin Exp Dermatol. 2023;48(6):667-673.
  59. Miyakawa T, Michihata N, Kumazawa R, Matsui H, Honda M, Yasunaga H. Short-term surgical outcomes of laparoscopic and open surgery for rectal cancer: A nationwide retrospective analysis. Asian Journal of Endoscopic Surgery. 2023;16(3):376-385.
  60. Miyamoto Y, Ohbe H, Kumazawa R, Matsui H, Fushimi K, Yasunaga H, Ohta B. Evaluation of Plasmapheresis vs Immunoglobulin as First Treatment After Ineffective Systemic Corticosteroid Therapy for Patients With Stevens-Johnson Syndrome and Toxic Epidermal Necrolysis. JAMA Dermatology. 2023;159(5):481-487.
  61. Mizuno A, Kaneko H, Suzuki Y, Okada A, Takeda N, Morita H, Fujiu K, Node K, Yasunaga H, Komuro I. Enduring Relevance of the Stages of Change Model for Transforming Lifestyle Behaviors Circ J. 2023;87(8):1138-1142.
  62. Morita K, Fujiogi M, Michihata N, Matsui H, Fushimi K, Yasunaga H, Fujishiro J. Oral antibiotics and organ space infection after appendectomy and intravenous antibiotics therapy for complicated appendicitis in children. European Journal of Pediatric Surgery. 2023 ;33(1):74-80.
  63. Morita K, Matsui H, Ono S, Fushimi K, Yasunaga H. Association between better night-shift nurse staffing and surgical outcomes: a retrospective cohort study using a nationwide inpatient database in Japan. Journal of Nursing Scholarship. 2023 ;55(2):494-505.
  64. Morita K, Miyamoto Y, Mizuno A, Shirane S, Ohbe H, Hashimoto Y, Kaneko H, Matsui H, Fushimi K, Yasunaga H. Impact of a financial incentive scheme for team-based palliative care in patients with heart failure in Japan: A nationwide database study. International Journal of Cardiology. 2023:387:131145.
  65. Muramatsu K, Shigemi D, Honno K, Matsuoka M, Fujino Y, Yasunaga H, Unno N, Mitsuda N, Kimura T, Matsuda S. Hospital case volume and maternal adverse events following abnormal deliveries: Analysis using a Japanese National Inpatient Database. nternational Journal of Gynecology and Obstetrics. 2023;162(2):693-702.
  66. Murooka Y, Sasabuchi Y, Takazawa T, Matsui H, Yasunaga H, Saito S. Long-Term Prognosis Following Early Rehabilitation in the ICU: A Retrospective Cohort Study. Crit Care Med. 2023 Aug 1;51(8):1054-1063.
  67. Nishimoto Y, Ohbe H, Matsui H, Nakajima M, Sasabuchi Y, Sato Y, Watanabe T, Yamada T, Fukunami M, Yasunaga H. Effectiveness of systemic thrombolysis on clinical outcomes in high-risk pulmonary embolism patients with venoarterial extracorporeal membrane oxygenation: a nationwide inpatient database study. Journal of Intensive Care. 2023;11(1):4.
  68. Nishimoto Y, Ohbe H, Matsui H, Nakajima M, Sasabuchi Y, Sato Y, Watanabe T, Yamada T, Fukunami M, Yasunaga H. Trends in Treatment Patterns and Outcomes of Patients With Pulmonary Embolism in Japan, 2010 to 2020: A Nationwide Inpatient Database Study. J Am Heart Assoc. 2023;12(12):e028981.
  69. Nishimoto Y, Ohbe H, Matsui H, Nakata J, Takiguchi T, Nakajima M, Sasabuchi Y, Sato Y, Watanabe T, Yamada T, Fukunami M, Yasunaga H. Trends in Mechanical Circulatory Support Use and Outcomes of Patients With Cardiogenic Shock in Japan, 2010 to 2020 (from a Nationwide Inpatient Database Study). Am J Cardiol. 2023;203:203-211.
  70. Ohbe H, Goto T, Okada A, Yasunaga H. Association between COVID-19 pandemic and mental disorders in spouses of intensive care unit patients: controlled interrupted time series study. Intensive Care Medicine. 2023;49(1):112-114.
  71. Ohbe H, Sasabuchi Y, Iwagami M, Ogura T, Ono S, Matsui H, Yasunaga H. Intensive care unit versus high-dependency care unit for COVID-19 patients with invasive mechanical ventilation. Annals of the American Thoracic Society. 2023;20(1):102-109.
  72. Ohbe H, Hachiya T, Yamaji T, Nakano S, Miyamoto Y, Sutoh Y, Otsuka-Yamasaki Y, Shimizu A, Yasunaga H, Sawada N, Inoue M, Tsugane S, Iwasaki M; Japan Public Health Center-based Prospective Study Group. Development and validation of genome-wide polygenic risk scores for predicting breast cancer incidence in Japanese females: a population-based case-cohort study. Breast Cancer Research and Treatment. 2023;197(3):661-671.
  73. Ohbe H, Ouchi K, Miyamoto Y, Ishigami Y, Matsui H, Yasunaga H, Sasabuchi Y. One-year functional outcomes after invasive mechanical ventilation for older adults with pre-existing long-term care needs. Crit Care Med. 2023;51(5):584-593.
  74. Ohbe H, Nakajima M, Miyamoto Y, Shibahashi K, Matsui H, Yasunaga H, Sasabuchi Y. 1-year functional outcomes after cardiopulmonary resuscitation for older adults with pre-existing long-term care needs. Age Ageing. 2023;52(5):1-9.
  75. Ohbe H, Sasabuchi Y, Doi K, Matsui H, Yasunaga H. Association Between Levels of Intensive Care and In-hospital Mortality in Patients Hospitalized for Sepsis Stratified by Sequential Organ Failure Assessment Scores. Critical Care Medicine. 2023;51(9):1138-1147.
  76. Ohbe H, Sasabuchi Y, Jo T, Michihata N, Matsui H, Yasunaga H. Kampo medicine in ICUs in Japan between 2010 and 2020. Journal of Anesthesia. 2023;37(4):654-656.
  77. Ohbe H, Tagami T, Endo A, Miyata S, Matsui H, Fushimi K, Kushimoto S, Yasunaga H. Trends in massive transfusion practice for trauma in Japan from 2011–2020: A nationwide inpatient database study. Journal of Intensive Care. 2023;11(1):46.
  78. Ohno R, Kaneko H, Ueno K, Kamiya K, Okada A, Suzuki Y, Matsuoka S, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Node K, Yasunaga H, Komuro I. Subjective Gait Speed and Risk of Developing Cardiovascular Events in 56,589 Cancer Survivors. International Heart Journal. 2023;64(4):672-677.
  79. Ohno R, Kaneko H, Ueno K, Aoki H, Okada A, Kamiya K, Suzuki Y, Matsuoka S, Fujiu K, Takeda N, Jo T, Ako J, Morita H, Node K, Yasunaga H, Komuro I. Association of Body Mass Index and Its Change with Incident Diabetes Mellitus. J Clin Endocrinol Metab. 2023 ;108(12):3145-3153.
  80. Ohno R, Kaneko H, Suzuki Y, Okada A, Matsuoka S, Ueno K, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Node K, Yasunaga H, Komuro I. Association of Metabolic Dysfunction Associated Fatty Liver Disease With Risk of HF and AF. JACC Asia. 2023;3(6):908-921.
  81. Okada A, Kaneko H, Matsuoka S, Itoh H, Suzuki Y, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Yamaguchi S, Node K, Yamauchi T, Yasunaga H, Komuro I. Association of cardiovascular health metrics with annual incidence of prediabetes or diabetes: Analysis of a nationwide real-world database. Journal of Diabetes Investigation. 2023;14(3):452-462.
  82. Okada A, Ikeda Kurakawa K, Harita Y, Shimizu A, Yamaguchi S, Aso S, Ono S, Hashimoto Y, Kumazawa R, Michihata N, Jo T, Matsui H, Fushimi K, Nangaku M, Yamauchi T, Yasunaga H, Kadowaki T. Comparison of Bleeding Complications after Pediatric Kidney Biopsy between Intravenous Sedation and General Anesthesia: A Nationwide Cohort Study. BMC Pediatrics. 2023;23(1):33.
  83. Okada A, Yamana H, Pan R, Yamaguchi S, Kumazawa R, Matsui H, Fushimi K, Honda Y, Nangaku M, Yamauchi T, Yasunaga H, Kadowaki T, Kim Y. Effect modification of the association between temperature variability and hospitalization for cardiovascular disease by comorbid diabetes mellitus: a nationwide time-stratified case-crossover analysis. Diabetes Research and Clinical Practice. 2023:202:110771
  84. Okada A, Honda A, Watanabe H, Sasabuchi Y, Aso S, Kurakawa KI, Nangaku M, Yamauchi T, Yasunaga H, Chikuda H, Kadowaki T, Yamaguchi S. Proteinuria screening and risk of bone fracture: a retrospective cohort study using a nationwide population-based database. Clinical Kidney Journal. 2023;17(1):1-9.
  85. Okubo Y, Uda K, Miyairi I, Michihata N, Kumazawa R, Matsui H, Fushimi K, Yasunaga H. Nationwide epidemiology and clinical practice patterns of pediatric urinary tract infections: application of multivariate time-series clustering. Pediatric Nephrology. 2023;38(12):4033-4041.
  86. Okushin K, Yamana H, Tateishi R, Sato M, Tsutsumi T, Matsui H, Fushimi K, Yasunaga H, Koike K, Fujishiro M. Treatment and outcome of hepatorenal syndrome in Japan: a retrospective cohort study using a national inpatient database. BMC Gastroenterol. 2023;23(1):218.
  87. Ono S, Sasabuchi Y, Ishimaru M, Ono Y, Matsui H, Yasunaga H. Short-term effects of reduced cost sharing on childhood dental care utilization and dental caries prevention in Japan. Community Dentistry and Oral Epidemiology. 2023 ;51(2):228-235.
  88. Ono S, Michihata N, Yamana H, Uemura K, Ono Y, Jo T, Yasunaga H. Comparative effectiveness of BNT162b2 and mRNA-1273 booster dose after BNT162b2 primary vaccination against the Omicron variants: A retrospective cohort study using large-scale population-based registries in Japan. Clinical Infectious Disease. 2023 ;76(1):18-24.
  89. Pan R, Okada A, Yamana H, Yasunaga H, Kumazawa R, Matsui H, Fushimi K, Honda Y, Kim Y. Association between ambient temperature and cause-specific cardiovascular disease admissions in Japan: A nationwide study. Environ Res. 2023;225:115610.
  90. Saito K, Michihata N, Hamada T, Jo T, Matsui H, Fushimi K, Nakai Y, Yasunaga H, Fujishiro M. Gemcitabine plus nab-paclitaxel for pancreatic cancer and interstitial lung disease: A nationwide longitudinal study. Cancer Sci. 2023;114(10):3996-4005.
  91. Sato S, Yasunaga H. A Review of Studies Using Japanese Nationwide Administrative Claims Databases. Annals of Clinical Epidemiology. 2023;5(2):58-64.
  92. Setogawa N, Ohbe H, Matsui H, Yasunaga H. Amputation after endovascular therapy with and without intravascular ultrasound guidance: A nationwide propensity score matched study. Circulation: Cardiovascular Interventions. 2023;16(4):e012451.
  93. Shibahashi K, Ohbe H, Yasunaga H. Artificial cerebrospinal fluid use during burr-hole surgery and reoperation rate in patients with chronic subdural hematoma: an analysis using a nationwide inpatient database. Acta Neurochirurgica. 2023;165(5):1289-1296.
  94. Shibahashi K, Ohbe H, Matsui H, Yasunaga H. Real-world benefit of intracranial pressure monitoring in the management of severe traumatic brain injury: a propensity score matching analysis using a nationwide inpatient database. Journal of Neurosurgery. 2023 ;139(6):1514-1522.
  95. Shibahashi K, Ohbe H, Matsui H, Yasunaga H. Intracranial pressure monitoring in children with severe traumatic brain injury: a propensity score matching analysis using a nationwide inpatient database in Japan. Neurosurgery. 2023;94(1):99-107.
  96. Shigemi D, Okada A, Yasunaga H. Postoperative Adverse Events and Re-treatment among Patients who have undergone Laparoscopic and Robotic Sacrocolpopexy for Pelvic Organ Prolapse in Japan. International Journal of Gynecology and Obstetrics. 2023 ;161(1):114-119.
  97. Shigemi D, Yasunaga H. Association of white blood cell count after operative vaginal delivery with maternal adverse outcome: A retrospective cohort study. Annals of Clinical Epidemiology. 2023;5(4):113-120.
  98. Shimada K, Iwagami M, Makito K, Shigemi D, Uda K, Ishimaru M, Komiyama J, Morita K, Matsui H, Fushimi K, Yasunaga H, Tanaka M, Tamiya N. The Comparison of Caesarean Section Bleeding Between Volatile and Total Intravenous Anaesthesia in a Japanese Nationwide Database. European Journal of Anaesthesiology and Intensive Care. 2023;2(2):p e0021.
  99. Shinmoto K, Ohbe H, Nakajima M, Miyamoto Y, Sasabuchi Y, Yasunaga H, Hiraoka E. Outcomes after early versus delayed antibiotic treatment of liver abscess in Japan: A nationwide retrospective cohort study. Journal of Infection and Chemotherapy. 2023;29(1):1-6.
  100. Shirata M, Ito I, Jo T, Iwao T, Oi I, Hamao N, Nishioka K, Yamana H, Nagase T, Yasunaga H, Hirai T. Factors Associated With the Development of Bacterial Pneumonia Related to Seasonal Influenza Virus Infection: A Study Using a Large-scale Health Insurance Claim Database. Open Forum Infect Dis. 2023;10(5):ofad222.
  101. Suzuki J, Endo S, Suzuki T, Sasahara T, Hatakeyama S, Morisawa Y, Hayakawa M, Yamakawa K, Endo A, Ogura T, Hirayama A, Yasunaga H, Tagami T. The effect of inhaled ciclesonide in non-critically ill hospitalized patients with COVID-19: a multicenter observational study in Japan. Open Forum Infectious Diseases. 2023 ;10(12):ofad571.
  102. Suzuki Y, Kaneko H, Tamura Y, Okada A, Fujiu K, Michihata N, Takeda N, Jo T, Morita H, Node K, Yasunaga H, Komuro I. Cardiovascular events after the initiation of immune checkpoint inhibitors. Heliyon. 2023;9(5):e16373.
  103. Suzuki Y, Kaneko H, Yano Y, Okada A, Hashimoto Y, Itoh H, Matsuoka S, Yokota I, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Kamiya K, Matsunaga A, Ako J, Node K, Yasunaga H, Komuro I. Threshold of body mass index for the development of hypertension among the Japanese adults. Journal of Nutrition. 2023 ;152(11):2565-2571.
  104. Suzuki Y, Kaneko H, Yano Y, Okada A, Itoh H, Matsuoka S, Yokota I, Imaizumi T, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Node K, Yasunaga H, Komuro I. Interaction of Blood Pressure and Glycemic Status in Developing Cardiovascular Disease: Analysis of a Nationwide Real-World Database. JAHA. 2023 ;12(1):e026192
  105. Suzuki Y, Kaneko H, Yano Y, Okada A, Fujiu K, Matsuoka S, Michihata N, Jo T, Takeda N, Morita H, Node K, Yasunaga H, Oparil S, Komuro I. The association of BP with cardiovascular outcomes in patients with dipstick proteinuria and preserved kidney function. Hypertension Research. 2023;46(4):856-867.
  106. Suzuki Y, Kaneko H, Tamura Y, Okada A, Michihata N, Jo T, Takeda N, Morita H, Fujiu K, Node K, Yasunaga H, Komuro I. Sex-Specific Differences in the Risk of Heart Failure following Anti-HER2 Monoclonal Antibody Therapy. Oncology. 2023;101(6):358-361.
  107. Suzuki Y, Kaneko H, Yano Y, Okada A, Matsuoka S, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Node K, Yasunaga H, Komuro I. Reduction in blood pressure for people with isolated diastolic hypertension and cardiovascular outcomes. European Journal of Preventive Cardiology. 2023;30(10):928-934.
  108. Tahara S, Hattori Y, Aso S, Uda K, Kumazawa R, Matsui H, Fushimi K, Yasunaga H, Morita A. Endoscopic Surgery versus Craniotomy for Spontaneous Intracerebral Hemorrhage in the Late Elderly Patients. Journal of Stroke and Cerebrovascular Diseases. 2023;32(11):107327.
  109. Tahara S, Hattori Y, Aso S, Uda K, Kumazawa R, Matsui H, Fushimi K, Yasunaga H, Morita A. Outcomes after Endoscopic Evacuation versus Evacuation Using Craniotomy or Stereotactic Aspiration for Spontaneous Intracerebral Hemorrhage: Analysis Using a Japanese Nationwide Database. Neurocritical Care. 2023;38(3):667-675.
  110. Takamoto N, Konishi T, Fujiogi M, Kutsukake M, Morita K, Hashimoto Y, Matsui H, Fushimi K, Yasunaga H, Fujishiro J. Outcomes following laparoscopic versus open surgery for pediatric intussusception: Analysis using a national inpatient database in Japan. Journal of Pediatric Surgery. 2023;58(11):2255-2261.
  111. Uemura K, Kanata T, Ono S, Michihata N, Yasunaga H. The disease severity of COVID-19 caused by Omicron variants: A brief review. Annals of Clinical Epidemiology. 2023;5(2): 31-36.
  112. Uemura K, Ono S, Michihata N, Yamana H, Yasunaga H. Duration of influenza vaccine effectiveness in the elderly in Japan: A retrospective cohort study using large-scale population-based registry data. Vaccine. 2023;41(19):3092-3098.
  113. Ueno K, Kaneko H, Kamiya K, Okada A, Itoh H, Konishi M, Sugimoto T, Suzuki Y, Matsuoka S, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Ako J, Node K, Yasunaga H, Komuro I. Association of early acute-phase rehabilitation initiation on outcomes among patients aged≥90 years with acute heart failure. Journal of the American Geriatrics Society 2023;71(6):1840-1850.
  114. Ueno K, Kaneko H, Kamiya K, Okada A, Suzuki Y, Fujiu K, Matsuoka S, Michihata N, Takeda N, Jo T, Morita H, Ako J, Node K, Yasunaga H, Komuro I. Gait speed and cardiovascular disease by glycemic status. American Journal of Preventive Medicine. 2023 ;65(1):45-51.
  115. Ueno K, Kaneko H, Okada A, Suzuki Y, Matsuoka S, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Kamiya K, Ako J, Node K, Yasunaga H, Komuro I. Association of four health behaviors in Life’s Essential 8 with the incidence of hypertension and diabetes mellitus. Preventive Medicine. 2023;175:107685.
  116. Urata S, Michihata N, Inuzuka R, Matsui H, Fushimi K, Ishimaru M, Kato M, Yasunaga H. Factors affecting in-hospital mortality among pediatric patients with myocarditis treated with mechanical circulatory support. J Cardiol. 2023;82(2):108-112.
  117. Watanabe H, Yamana H, Okada A, Matsui H, Fushimi K, Yasunaga H. Therapeutic plasma exchange for anti-glomerular basement membrane disease with dialysis-dependent kidney failure without diffuse alveolar hemorrhage. Journal of Nephrology. 2023;36(8):2317-2325.
  118. Watanabe J, Sasabuchi Y, Ohbe H, Nakajima M, Matsui H, Miki A, Horie H, Kotani K, Yasunaga H, Sata N. Impact of preoperative stoma site marking on morbidity and mortality in patients with colorectal perforation: A nationwide retrospective cohort study. World Journal of Surgery. 2023;47(11):2857-2864.
  119. Yamada Y, Ohbe H, Yasunaga H, Nakamoto H, Miyakawa Y. Clinical characteristics, treatments, and outcomes of thrombotic thrombocytopenic purpura treated with plasma exchange in Japan: a nationwide inpatient database study. Renal Replacement Therapy. 2023;9:25.
  120. Yamamoto R, Tamura T, Haiden A, Yoshizawa J, Homma K, Kitamura N, Sugiyama K, Tagami T, Yasunaga H, Aso S, Takeda M, Sasaki J; SOS-KANTO 2017 Study Group. Frailty and Neurologic Outcomes of Patients Resuscitated From Nontraumatic Out-of-Hospital Cardiac Arrest: A Prospective Observational Study. Ann Emerg Med. 2023;82(1):84-93.
  121. Yamana H, Lee S, Lin YC, Yoon NH, Fushimi K, Yasunaga H, Cheng SH, Kim HS. Institutional Variance in Mortality after Percutaneous Coronary Intervention for Acute Myocardial Infarction in Korea, Japan, and Taiwan. International Journal of Health Policy and Management. 2023;12:6796.
  122. Yamana H, Ono S, Michihata N, Uemura K, Jo T, Yasunaga H. Effect of the 23-valent pneumococcal polysaccharide vaccine on the incidence of hospitalisation with pneumonia in adults aged ≥65 years: retrospective cohort study using a population-based database in Japan. Clinical Microbiology and Infection. 2023;29(7):904-910.
  123. Yamana H, Konishi T, Yasunaga H. Validation studies of Japanese administrative health care data: A scoping review. Pharmacoepidemiol Drug Saf. 2023;32(7):705-717.
  124. Yamana H, Yamasaki K, Jo T, Yatsuhashi H, Yasunaga H. A descriptive analysis of acute viral hepatitis using a database with electronic medical records and claims data. Annals of Clinical Epidemiology. 2023;5(4):107-112.
  125. Yamazaki R, Ohbe H, Matsuda Y, Kito S, Shigeta M, Morita K, Matsui H, Fushimi K, Yasunaga H. Effectiveness of medical fee revisions for psychotropic polypharmacy in patients with mood disorders in Japan: An interrupted time-series analysis using a nationwide inpatient database. Asian J Psychiatr. 2023;84:103581.
  126. Yokoyama A, Jo T, Sakamoto Y, Urushiyama H, Tamiya H, Tanaka G, Kumazawa R, Matsui H, Fushimi K, Yasunaga H, Nagase T. Effectiveness and safety of the co-administration of Yokukan-San (Japanese Herbal Medicine) with Antipsychotics in Hospitalized Older Patients with Pneumonia. Geriatrics & Gerontology International. 2023 ;23(11):849-854.
  127. Yoshiyasu N, Jo T, Sato M, Kumazawa R, Matsui H, Fushimi K, Nagase T, Yasunaga H, Nakajima J. Readmissions and costs in cadaveric and living-donor lobar lung transplantation: Analysis using a national database. JHLT Open. 2023;2:100010

[2022]

  1. Abe H, Sumitani M, Matsui H, Inoue R, Fushimi K, Uchida K, Yasunaga H. Use of naldemedine is associated with reduced incidence of hyperactive delirium in cancer patients with opioid-induced constipation: a nationwide retrospective cohort study in Japan. Pharmacotherapy. 2022;42(3):241-249.
  2. Abe H, Sumitani M, Matsui H, Inoue R, Konishi M, Fushimi K, Uchida K, Yasunaga H.. Gabapentinoid use is associated with reduced occurrence of hyperactive delirium in older cancer patients undergoing chemotherapy: a nationwide retrospective cohort study in Japan. Anesthesia & Analgesia. 2022;135(2):362-369.
  3. Aso S, Matsui H, Fushimi K, Yasunaga H. Effect of Dobutamine on Patients with Septic Shock: A Retrospective Nationwide Study. Annals of Clinical Epidemiology. 2022;4(2): 41-48.
  4. Awano N, Jo T, Izumo T, Inomata M, Morita K, Matsui H, Fushimi K, Urushiyama H, Nagase T, Yasunaga H. Recombinant human soluble thrombomodulin for acute exacerbation of idiopathic pulmonary fibrosis: A nationwide observational study. Journal of Intensive Care. 2022;10(1):14.
  5. Chinen T, Sasabuchi Y, Matsui H, Yamaguchi H, Yasunaga H. Oxaliplatin- versus cisplatin-based regimens for elderly individuals with advanced gastric cancer: A retrospective cohort study. BMC Cancer. 2022;22(1):460.
  6. Fujita A, Hashimoto Y, Matsui H, Yasunaga H, Aihara M. Recent trends in glaucoma surgery: a nationwide database study in Japan, 2011–2019. Japanese Journal of Ophthalmology. 2022;66(2):183-192.
  7. Fujita A, Hashimoto Y, Okada A, Obata R, Aihara M, Matsui H, Yasunaga H. Association Between Proteinuria and Retinal Vein Occlusion in Individuals with Preserved Renal Function: A Retrospective Cohort Study. Acta Ophthalmologica. 2022;100(7):e1510-e1517
  8. Fukui R, Kaneko H, Okada A, Yano Y, Itoh H, Matsuoka S, Morita K, Kiriyama H, Kamon T, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Nakamura S, Nishiyama A, Node K, Yokoo T, Nangaku M, Yasunaga H, Komuro I. Semiquantitative assessed proteinuria and risk of heart failure: Analysis of a nationwide epidemiological database. Nephrology Dialysis Transplantation. 2022;37(9):1691-1699.
  9. Furuya H, Nakajima M, Ikeda K, Nakamura K, Ohbe H, Aso S, Kumazawa R, Iwamoto T, Iwata A, Furuta S, Matsui H, Fushimi K, Yasunaga H, Nakajima H. Prognosis and treatment of myositis-associated severe interstitial lung disease. Arthritis Care & Research. 2022;74(3):478-483.
  10. Fuseda Y, Michihata N, Kumazawa R, Fushimi K, Yasunaga H. Annual Trend in Lumbar Puncture for Infants Younger Than 3 Months Hospitalized with Suspected Serious Bacterial Infection: A Nationwide Inpatient Database Study. Pediatric Infectious Disease Journal. 2022;41(8):631-635.
  11. Hamada S, Nakajima M, Kaszynski RH, Otaka S, Goto H, Matui H, Fushimi K, Yamaguchi Y, Yasunaga H. Association between adjunct clindamycin and in-hospital mortality in patients with necrotizing soft tissue infection due to group A Streptococcus: A nationwide cohort study. European Journal of Clinical Microbiology & Infectious Diseases. 2022;41(2):263-270.
  12. Hashimoto Y, Kaneko H, Okada A, Matsui H, Yasunaga H, Aihara M, Obata R. Association between retinal vein occlusion and Life’s Simple 7 cardiovascular health metrics: A large claims database study. Ophthalmology Retina. 2022;6(8):684-692.
  13. Hashimoto Y, Matsui H, Michihata N, Ishimaru M, Yasunaga H, Aihara M, Kaburaki T. Incidence of sympathetic ophthalmia after inciting events: a national database study in Japan. Ophthalmology. 2022;129(3):344-352.
  14. Hashimoto Y, Michihata N, Yamana H, Shigemi D, Morita K, Matsui H, Yasunaga H, Aihara M. Safety of topical ophthalmic antibiotics in pregnant women with hordeola, chalazia, blepharitis, or bacterial conjunctivitis: propensity score analyses. EYE. 2022 ;36(5):1066-1073.
  15. Hashimoto Y, Yamana H, Michihata N, Shigemi D, Ishimaru M, Matsui H, Yasunaga H, Aihara M. Eye drops for dry eye disease during pregnancy and adverse neonatal outcomes: high-dimensional propensity score analyses. Ophthalmic Epidemiology. 2022;29(4):384-393.
  16. Hirano T, Nakajima M, Ohbe H, Kaszynski RH, Iwasaki Y, Arakawa Y, Sasabuchi Y, Fushimi K, Matsui H, Yasunaga H. Corticosteroid use with extracorporeal cardiopulmonary resuscitation for out-of-hospital cardiac arrest: A nationwide observational study. Resuscitaion Plus. 2022;12:100308.
  17. Hirano Y, Kaneko H, Konishi T, Itoh H, Matsuda S, Kawakubo H, Uda K, Matsui H, Fushimi K, Daiko H, Itano O, Yasunaga H, Kitagawa Y. Short-Term Outcomes of Epidural Analgesia in Minimally Invasive Esophagectomy for Esophageal Cancer: Nationwide Inpatient Data Study in Japan. Annals of Surgical Oncology. 2022;29(13):8225-8234.
  18. Hirose N, Morita K, Matsui H, Fushimi K, Yasunaga H. Association between nurse aide staffing and patient mortality after major cancer surgeries in acute care settings: A retrospective cohort study using a national inpatient database. Nursing and Health Sciences. 2022;24(1):283-292.
  19. Hirose N, Morita K, Matsui H, Fushimi K, Yasunaga H. Dose-response association between nurse staffing and patient outcomes following major cancer surgeries using a nationwide inpatient database in Japan. Journal of Clinical Nursing. 2022;31(17-18):2562-2573.
  20. Honda A, Michihata N, Iizuka Y, Uda K, Morita K, Mieda T, Takasawa E, Ishiwata S, Tajika T, Matsui H, Fushimi K, Yasunaga H, Chikuda H. Risk factors for severe lower extremity ischemia following venoarterial extracorporeal membrane oxygenation: An analysis using a nationwide inpatient database. Trauma Surgery & Acute Care Open. 2022;7:e000776.
  21. Hosoi T, Yamana H, Tamiya H, Matsui H, Fushimi K, Akishita M, Yasunaga H, Ogawa S. Association between comprehensive geriatric assessment and polypharmacy at discharge in patients with ischaemic stroke: a nationwide retrospective cohort study. eClinicalMedicine. 2022;50:101528.
  22. Inooka Y, Yamana H, Shinoda Y, Inokuchi H, Matsui H, Fushimi K, Yasunaga H, Haga N. Predictive factors for oral intake recovery after acute stroke: analysis of a Japanese nationwide inpatient database. Dysphagia 2022;37(6):1623-1632.
  23. Ishimaru M, Ono S, Morita K, Matsui H, Hagiwara Y, Yasunaga H. Prevalence, incidence rate and risk factors of medication-related osteonecrosis of the jaw (MRONJ) in patients with osteoporosis and cancer: a nationwide population-based study in Japan. Journal of Oral and Maxillofacial Surgery. 2022;80(4):714-727.
  24. Ishimaru T, Fujiogi M, Michihata N, Konishi T, Morita K, Matsui H, Uda K, Fushimi K, Kawashima H, Fujishiro J, Yasunaga H. Perioperative Outcomes of Laparoscopically Assisted Anorectoplasty versus Conventional Procedures for Anorectal Malformation: A Retrospective Nationwide Database Study. Pediatric Surgery International. 2022;38(12):1785-1791.
  25. Itoh H, Kaneko H, Okada A, Suzuki Y, Fujiu K, Matsuoka S, Michihata N, Jo T, Nakanishi K, Takeda N, Morita H, Node K, Di Tullio MR, Homma S, Yasunaga H, Komuro I. Age-Specific Relation of Cardiovascular Health Metrics With Incident Cardiovascular Disease. American Journal of Cardiology. 2022;177:34-39.
  26. Iwasaki Y, Ohbe H, Shigemi D, Fushimi K, Yasunaga H. Effect of antithrombin Ⅲ among patients with disseminated intravascular coagulation in obstetrics: a nationwide observational study in Japan. BJOG: An International Journal of Obstetrics and Gynaecology. 2022;129(5):805-811.
  27. Kamijo K, Nakajima M, Shigemi D, Kaszynski RH, Ohbe H, Goto T, Sasabuchi Y, Fushimi K, Matsui H, Yasunaga H. Resuscitative endovascular balloon occlusion of the aorta for life-threatening postpartum hemorrhage: A nationwide observational study in Japan. The Journal of Trauma and Acute Care Surgery. 2022;93(3):418-423.
  28. Kamon T, Kaneko H, Itoh H, Okada A, Matsuoka S, Kiriyama H, Fujiu K, Morita K, Michihata N, Jo T, Takeda N, Morita H, Nakamura S, Node K, Yasunaga H, Komuro I. Sex difference in the association between lipid profile and incident cardiovascular disease among young adults. Journal of Atherosclerosis and Thrombosis. 2022;29(10):1475-1486.
  29. Kaneko H, Suzuki Y, Ueno K, Okada A, Fujiu K, Matsuoka S, Michihata N, Jo T, Takeda N, Morita H, Kamiya K, Node K, Yasunaga H, Komuro I. Association of Life’s Simple 7 with incident cardiovascular disease in 53,974 patients with cancer. European Journal of Preventive Cardiology. 2022;29(18):2324-2332.
  30. Kaneko H, Yano Y, Lee HH, Lee H, Okada A, Itoh H, Morita K, Fukui A, Fujiu K, Suzuki Y, Matsuoka S, Nakamura S, Michihata N, Jo T, Takeda N, Morita H, Yokoo T, Nishiyama A, Node K, Viera AJ, Muntner P, Oparil S, Kim HC, Yasunaga H, Komuro I. Medication-Naïve Blood Pressure and Incident Cancers: Analysis of Two Nationwide Population-Based Databases. American Journal of Hypertension. 2022;35(8):731-739.
  31. Kaneko H, Yano Y, Suzuki Y, Okada A, Itoh H, Matsuoka S, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Node K, Viera AJ, Lima JAC, Oparil S, Lam CSP, Carey RM, Yasunaga H, Komuro I. Reduction in blood pressure for elevated blood pressure/ stage 1 hypertension according to the ACC/AHA guideline and cardiovascular outcomes. European Journal of Preventive Cardiology. 2022;29(14):1921-1929.
  32. Karakawa R, Konishi T, Yoshimatsu H, Fuse Y, Hashimoto Y, Matsui H, Fushimi K, Yano T, Yasunaga H. Comparison of short-term outcomes between pedicled- and free-flap autologous breast reconstruction. Breast Cancer. 2022;29(6):1067-1075.
  33. Kodama S, Jo T, Yasunaga H, Michihata N, Matsui H, Kumazawa R, Shirota Y, Fushimi K, Toda T, Hamada M. Outcomes of gastrointestinal cancer surgeries in Parkinson’s disease patients: a nationwide study. Parkinsonism and Related Disorders. 2022;96:45-49.
  34. Konishi T, Fujiogi M, Michihata N, Kumazawa R, Ohbe H, Matsui H, Fushimi K, Ogita M, Tanabe M, Seto Y, Yasunaga H. Interstitial lung disorders following postoperative radiotherapy with concurrent or sequential hormonal therapy for breast cancer: a nationwide database study in Japan. Breast Cancer. 2022;29(4):688-697.
  35. Konishi T, Fujiogi M, Michihata N, Matsui H, Tanabe M, Seto Y, Yasunaga H. Association between body mass index and incidence of breast cancer in premenopausal women: A Japanese nationwide database study. Breast Cancer Research and Treatment. 2022;194(2):315-325.
  36. Konishi T, Fujiogi M, Michihata N, Morita K, Matsui H, Fushimi K, Tanabe M, Seto Y, Yasunaga H. Association of operative day of the week with length of stay and total hospitalization costs in patients with partial mastectomy: a nationwide database study in Japan. JMA Journal. 2022;5(3):319-327.
  37. Konishi T, Fujiogi M, Michihata N, Ohbe H, Matsui H, Fushimi K, Tanabe M, Seto Y, Yasunaga H. Cost-effectiveness analysis of trastuzumab monotherapy versus adjuvant chemotherapy plus trastuzumab in elderly patients with HER2-positive early breast cancer. Japanese Journal of Clinical Oncology. 2022;52(10):1115-1123.
  38. Konishi T, Fujiogi M, Sato A, Michihata N, Kumazawa R, Matsui H, Fushimi K, Tanabe M, Seto Y, Yasunaga H. Short-term outcomes following breast cancer surgery with and without neoadjuvant chemotherapy: a nationwide administrative database study in Japan. Annals of Surgical Oncology. 2022;29(5):3000-3010.
  39. Konishi T, Fujiogi M, Shigemi D, Matsui H, Fushimi K, Tanabe M, Seto Y, Yasunaga H. Risk factors for postoperative bleeding following breast cancer surgery: a nationwide database study of 477,108 cases in Japan. World Journal of Surgery. 2022;46(12):3062-3071.
  40. Konishi T, Fujiogi M, Shigemi D, Nishioka K, Matsui H, Fushimi K, Tanabe M, Seto Y, Yasunaga H. Surgical and obstetric outcomes of breast cancer surgery during pregnancy: A nationwide database study in Japan. Breast Cancer Research and Treatment. 2022;195(3):289-299.
  41. Konishi T, Goto T, Fujiogi M, Michihata N, Kumazawa R, Matsui H, Fushimi K, Tanabe M, Seto Y, Yasunaga H. New machine learning scoring system for predicting postoperative mortality in gastroduodenal ulcer perforation: A study using a Japanese nationwide inpatient database. Surgery. 2022;171(4):1036-1042.
  42. Konishi T, Sakata A, Inokuchi H, Kumazawa R, Matsui H, Fushimi K, Tanabe M, Seto Y, Yasunaga H. Treatments and outcomes of adult parapharyngeal and retropharyngeal abscess: 1,882 cases from a Japanese nationwide database.  American Journal of Otolaryngology. 2022;44(2):103770.
  43. Konishi T, Takamoto T, Fujiogi M, Hashimoto Y, Matsui H, Fushimi K, Tanabe M, Seto Y, Yasunaga H. Laparoscopic versus open distal pancreatectomy with or without splenectomy: A propensity score analysis in Japan. International Journal of Surgery. 2022;104:106765.
  44. Konishi T, Yoshimoto T, Fujiogi M, Yamana H, Tanabe M, Seto Y, Yasunaga H. Validity of operative information in Japanese administrative data: a chart review-based analysis of 1221 cases at a single institution. Surgery Today. 2022;52(10):1484-1490.
  45. Kumazawa R, Jo T, Matsui H, Fushimi K, Yasunaga H. Direct oral anticoagulants versus warfarin for secondary prevention of cerebral infarction and bleeding in older adults with atrial fibrillation. Journal of the American Geriatrics Society. 2022;70(7):2029-2039.
  46. Kurakawa KI, Okada A, Bessho K, Jo T, Ono S, Michihata N, Kumazawa R, Matsui H, Fushimi K, Yamaguchi S, Yamauchi T, Nangaku M, Kadowaki T, Yasunaga H. Major complications after percutaneous biopsy of native or transplanted liver in pediatric patients: A nationwide inpatient database study in Japan. BMC Gastroenterology. 2022;22(1):395.
  47. Kutsuna S, Ohbe H, Matsui H, Yasunaga H. Effectiveness of fluoroquinolone antimicrobials in addition to tetracyclines for Japanese Spotted Fever: A retrospective analysis using a national inpatient database. International Journal of Infectious Diseases. 2022;123:70-75.
  48. Kutsuna S, Ohbe H, Matsui H, Yasunaga H.. Delayed Tetracycline Initiation Increases Mortality Risk in Patients With Japanese Spotted Fever: Retrospective Analysis Using a National Inpatient Database. Open Forum Infectious Diseases. 2022;9(11):ofac573.
  49. Matsuda K, Jo T, Matsui H, Fushimi K, Yasunaga H, Sugimoto K. Institutional factors associated with early mortality of newly diagnosed acute promyelocytic leukemia. Blood Cancer Journal. 2022;12(12):167.
  50. Matsuda K, Jo T, Shimura A, Honda A, Taoka K, Masamoto Y, Matsui H, Fushimi K, Yasunaga H, Kurokawa M. Risk of febrile neutropenia in very elderly patients aged ≥80 years receiving their first cycle of R-CHOP regimen: a nationwide real-world study in Japan. British Journal of Haematology. 2022;197(3):e37-e41.
  51. Matsui H, Yamana H, Fushimi K, Yasunaga H. Development of deep learning models for predicting in-hospital mortality using an administrative claims database. JMIR Medical Informatics. 2022;10(2):e27936.
  52. Matsuoka S, Kaneko H, Kamon T, Suzuki Y, Yano Y, Okada A, Itoh H, Morita K, Fukui A, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Nakamura S, Yokoo T, Nishiyama A, Node K, Yasunaga H, Komuro I. Incorporation of Retinal Arteriolosclerosis into Risk Stratification of Blood Pressure Category According to the 2017 ACC/AHA Blood Pressure Guideline. Journal of Atherosclerosis and Thrombosis. 2022;29(10):1487-1498.
  53. Matsuoka S, Kaneko H, Okada A, Fukui A, Yano Y, Itoh H, Morita K, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Yamaguchi S, Nakamura S, Nishiyama A, Yokoo T, Node K, Yamauchi T, Nangaku M, Yasunaga H, Komuro I. Association between Proteinuria and Incident Colorectal Cancer: Analysis of a Nationwide Population-Based Database. BMJ Open. 2022;12(4):e056250.
  54. Matsuoka S, Kaneko H, Okada A, Itoh H, Suzuki Y, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Nakamura S, Node K, Yasunaga H, Komuro I. Association of retinal atherosclerosis assessed using Keith-Wagener-Barker system with incident heart failure and other atherosclerotic cardiovascular disease: Analysis of 319,501 individuals from the general population. Atherosclerosis. 2022;348:68-74.
  55. Matsuoka S, Kaneko H, Okada A, Morita K, Itoh H, Michihata N, Jo T, Takeda N, Morita H, Fujiu K, Nakamura S, Node K, Yasunaga H, Komuro I. Age Modified Relationship between Modifiable Risk Factors and the Risk of Atrial Fibrillation. Circulation: Arrhythmia and Electrophysiology. 2022;15(1):e010409.
  56. Michihata N, Shigemi D, Yamana H, Matsui H, Jo T, Yasunaga H. Safety of Japanese Herbal Kampo Medicines for the Treatment of Depression During Pregnancy. International Journal of Gynecology and Obstetrics. 2022 159(3):865-869.
  57. Michihata N, Suzuki T, Honda A, Oka I, Yoshikawa T, Saito K, Matsui H, Fushimi K, Yasunaga H. Clinical features of Kawasaki disease with atlantoaxial rotatory fixation. Pediatric Infectious Disease Journal. 2022;41(8):626-630.
  58. Michihata N, Suzuki T, Yoshikawa T, Saito K, Matsui H, Fushimi K, Yasunaga H. Association between intravenous immunoglobulin dose and outcomes in patients with acute Kawasaki disease. European Journal of Pediatrics. 2022;181(10):3607-3615.
  59. Miyachi H, Konishi T, Kumazawa R, Matsui H, Shimizu S, Fushimi K, Matsui H, Yasunaga H. Treatments and outcomes of generalized pustular psoriasis: a cohort of 1516 patients in a nationwide inpatient database in Japan. Journal of the American Academy of Dermatology. 2022;86(6):1266-1274.
  60. Miyachi H, Konishi T, Shigemi D, Matsui H, Shimizu S, Fushimi K, Matsue H, Yasunaga H. Association between psoriasis and short-term outcomes of acute myocardial infarction: a matched-pair cohort study using a nationwide inpatient database in Japan. JAAD International. 2022;8:21-30.
  61. Miyakawa T, Michihata N, Morita K, Matsui H, Honda M, Yasunaga H. Ambient temperature and hospital admissions for acute cholecystitis: A nationwide inpatient database study in Japan. HPB. 2022;24(3):398-403.
  62. Miyamoto Y, Iwagami M, Aso S, Uda K, Fushimi K, Hamasaki Y, Nangaku M, Yasunaga H, Doi K. Postoperative outcomes of cancer surgery in patients with and without kidney failure with dialysis therapy: A matched-pair cohort study. Clinical Kidney Journal 2022;15(6):1137-1143.
  63. Miyamoto Y, Matsuyama T, Goto T, Ohbe H, Kitamura T, Yasunaga H, Ohta B. Association between age and neurological outcomes in out-of-hospital cardiac arrest patients resuscitated with extracorporeal cardiopulmonary resuscitation: a nationwide multicentre observational study. European Heart Journal: Acute Cardiovascular Care. 2022;11(1):35-42.
  64. Mizuno S, Ono S, Takano A, Yasunaga H, Iwase H. Dental characteristics associated with methamphetamine use: Analysis using forensic autopsy data. BMC Oral Health. 2022;22(1):141.
  65. Nagata S, Ohbe H, Jo T, Matsui H, Fushimi K, Yasunaga H. Glucocorticoids and rates of biphasic reactions in patients with adrenaline-treated anaphylaxis: A propensity score matching analysis. International Archives of Allergy and Immunology. 2022;183(9):939-945.
  66. Nishimoto Y, Ohbe H, Matsui H, Nakajima M, Sasabuchi Y, Goto T, Morita K, Fushimi K, Sato Y, Yasunaga H. Predictive ability of the sequential organ failure assessment score for in-hospital mortality in patients with cardiac critical illness: a nationwide observational study. EHJ Acute Cardiovasucular Care. 2022;11(4):312-321.
  67. Ogasawara H, Obe H, Yasunaga H. Oral food challenge management in Japan: A retrospective analysis of health insurance claims data. Clinical & Experimental Allergy. 2022;52(7):898-900.
  68. Ogawa Y, Yamana H, Noda T, Kishimoto M, Yoshihara S, Kanaoka K, Matsui H, Fushimi K, Yasunaga H, Kawaguchi M, Imamura T. Severe complications after general anesthesia versus sedation during pediatric diagnostic cardiac catheterization for ventricular septal defect. Journal of Clinical Medicine. 2022;11(17):5165.
  69. Ohbe H, Goto T, Matsui H, Fushimi K, Yasunaga H. Associations of government-issued ICU admission criteria with clinical practices, outcomes, and ICU bed occupancy. Annals of the American Thoracic Society. 2022;19(6):1013-1021.
  70. Ohbe H, Goto T, Nakamura K, Matsui H, Yasunaga H. Development and validation of early prediction models for new-onset functional impairment at hospital discharge of ICU admission. Intensive Care Medicine. 2022;48(6):679-689.
  71. Ohbe H, Matsui H, Kumazawa R, Yasunaga H. Intensive care unit versus high dependency care unit admission after emergency surgery: a nationwide in-patient registry study. British Journal of Anaesthesia. 2022;129(4):527-535.
  72. Ohbe H, Matsui H, Kumazawa R, Yasunaga H. Postoperative intensive care unit admission following major elective surgery: a nationwide inpatient database study. European Journal of Anaesthesiology. 2022;39(5):436-444.
  73. Ohbe H, Matsui H, Yasunaga H. ICU versus high-dependency care unit for patients with acute myocardial infarction: a nationwide propensity score-matched cohort study. Critical Care Medicine. 2022;50(6):977-985.
  74. Ohbe H, Sasabuchi Y, Kumazawa R, Matsui H, Yasunaga H. Intensive care unit occupancy in Japan, 2015–2018: a nationwide inpatient database study. Journal of Epidemiology. 2022;32(12):535-542.
  75. Ohbe H, Sasabuchi Y, Matsui H, Yasunaga H. Impact of the COVID-19 pandemic on critical care utilization in Japan: a nationwide inpatient database study. Journal of Intensive Care. 2022;10(1):51.
  76. Ohbe H, Tagami T, Ogura T, Matsui H, Yasunaga H. Low-flow duration and outcomes of extracorporeal cardiopulmonary resuscitation in adults with in-hospital cardiac arrest: a nationwide inpatient database study. Ciritcal Care Medicine. 2022;50(12):1768-1777.
  77. Ohbe H, Tagami T, Uda K, Matsui H, Yasunaga H. Incidence and outcomes of in-hospital cardiac arrest in Japan 2011–2017: a nationwide inpatient database study. Journal of Intensive Care. 2022;10(1):10.
  78. Ohisa K, Yamana H, Morita K, Matsui H, Fushimi K, Yasunaga H. Association between subcutaneous steroid injection for extravasation of vesicant anticancer drugs and skin ulcers requiring surgery. European Journal of Oncology Nursing. 2022;58:102119.
  79. Okada A, Hashimoto Y, Goto T, Yamaguchi S, Ono S, Ikeda Kurakawa K, Nangaku M, Yamauchi T, Yasunaga H, Kadowaki T. A machine learning-based predictive model to identify patients who failed to attend a follow-up visit for diabetes care after recommendations from a national screening program. Diabetes Care. 2022;45(6):1346-1354.
  80. Okada A, Yamana H, Yamaguchi S, Kurakawa K, Michihata N, Matsui H, Fushimi K, Nangaku M, Yamauchi T, Yasunaga H, Kadowaki T. Effect of branched-chain amino acid infusion on in-hospital mortality of patients with hepatic encephalopathy and endstage kidney disease: a retrospective cohort study using a national inpatient database. Journal of Renal Nutrition. 2022;32(4):432-440.
  81. Okada A, Yasunaga H. Prevalence of non-communicable diseases in Japan using a newly developed administrative claims database covering young, middle-aged, and elderly people. JMA Journal. 2022;5(2):190-198.
  82. Okubo Y, Nishi A, Uda K, Miyairi I, Michihata N, Kumazawa R, Matsui H, Fushimi K, Yasunaga H. Financial Incentives for Infection Prevention and Antimicrobial Stewardship to Reduce Antibiotic Use: A Japan’s Nationwide Observational Study. Journal of Hospital Infection. 2022;131:89-98.
  83. Ono S, Ishimaru M, Yokota I, Konishi T, Okada A, Ono Y, Matsui H, Itai S, Yonenaga K, Tonosaki K, Watanabe R, Hoshi K, Yasunaga H. Risk of post-extraction bleeding with direct oral anticoagulant compared with warfarin: Retrospective cohort study using large scale claims data in Japan. Thrombosis Research. 2022;222:24-30.
  84. Sakakibara K, Shigemi D, Toriumi R, Ota A, Michihata N, Yasunaga H. Emergency Visits and Hospitalization after Message Chat, Voice Call, or Video Call for Telehealth in Obstetrics and Gynecology: A Cross-Sectional Study Using Telehealth Service User Data in Japan. J Med Internet Res. 2022;24(9):e35643.
  85. Sakamoto T, Fujiogi M, Ishimaru M, Matsui H, Fushimi K, Yasunaga H. Comparison of postoperative infection after emergency inguinal hernia surgery with enterectomy between mesh repair and non-mesh repair: a national database analysis. Hernia. 2022;26(1):217-223.
  86. Sato M, Yamana H, Ono S, Ishimaru M, Matsui H, Yasunaga H. Trends in prophylactic antibiotic use for tooth extraction from 2015 to 2018 in Japan: an analysis using a health insurance claims database. Journal of Infection and Chemotherapy. 2022;28(4):504-509.
  87. Seike Y, Matsuda H, Shimizu H, Ishimaru S, Hoshina K, Michihata N, Yasunaga H, Komori K; Japanese Committee for Stentgraft Management (JACSM). Nationwide analysis of the association between persistent type II endoleak and late outcomes of endovascular abdominal aortic aneurysm repair in Japan: Propensity-matched analysis. Circulation 2022;145(14):1056-1066.
  88. Shibahashi K, Konishi T, Ohbe H, Yasunaga H. Cost-effectiveness analysis of termination-of-resuscitation rules for patients with out-of-hospital cardiac arrest. Resuscitation. 2022;180:45-51.
  89. Shibahashi K, Ohbe H, Yasunaga H. Association between intensive care unit admission practices and outcomes in patients with isolated traumatic subarachnoid hemorrhage: A nationwide inpatient database analysis in Japan. Neurocritical Care. 2022;37(2):497-505.
  90. Shibahashi K, Ohbe H, Yasunaga H. Urban-rural inequalities in care and outcomes of severe traumatic brain injury: A nationwide inpatient database analysis in Japan. World Neurosurgery. 2022 Jul;163:e628-e634.
  91. Shigemi D, Tabuchi T, Okawa S, Yasunaga H. Association between health literacy and COVID-19 prevention behaviors among pregnant and postpartum women. The Journal of Maternal-Fetal & Neonatal Medicine. 2022;35(25):9971-9977.
  92. Sugawara C, Yamana H, Sasagawa E, Yonezawa K, Hikita N, Morita K, Matsui H, Yasunaga H, Haruna M. Factors associated with surgical treatment in postpartum women with mastitis or breast abscess: A retrospective cohort study. Breastfeeding Medicine. 2022;17(3):233-238.
  93. Sugihara T, Kamei J, Yasunaga H, Sasabuchi Y, Fujimura T. Prescription of Choreito, a Japanese Kampo medicine, with antimicrobials for treatment of acute cystitis: a retrospective cohort study. Antibiotics. 2022;11:1840.
  94. Suzuki J, Sasabuchi Y, Hatakeyama S, Matsui H, Sasahara T, Morisawa Y, Yamada T, Fushimi K, Yasunaga H. Additional effect of azithromycin over β-lactam alone for severe community-acquired pneumonia-associated acute respiratory distress syndrome: a retrospective cohort study. Pneumonia. 2022 ;14(1):1.
  95. Suzuki T, Michihata N, Yoshikawa T, Saito K, Matsui H, Fushimi K, Yasunaga H. Low- versus high-concentration intravenous immunoglobulin for children with Kawasaki disease in the acute phase. International Journal of Rheumatic Diseases. 2022;25(5):576-583.
  96. Suzuki Y, Kaneko H, Okada A, Itoh H, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Yamaguchi S, Kamiya K, Matsunaga A, Ako J, Node K, Yamauchi T, Nangaku M, Yasunaga H, Komuro I. Impact of Glucose Tolerance on Incident Proteinuria in Prediabetes: Analysis of a Nationwide Population-Based Dataset. American Journal of Nephrology. 2022;53(4):307-315.
  97. Suzuki Y, Kaneko H, Okada A, Itoh H, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Yamaguchi S, Yano Y, Kamiya K, Matsunaga A, Ako J, Fukui A, Yokoo T, Nishiyama A, Node K, Yamauchi T, Nangaku M, Yasunaga H, Komuro I. Risk for Proteinuria in Newly Defined Hypertensive People Based on the 2017 American College of Cardiology/American Heart Association Blood Pressure Guideline. American Journal of Cardiology. 2022;168:83-89.
  98. Suzuki Y, Kaneko H, Okada A, Itoh H, Matsuoka S, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Kamiya K, Matsunaga A, Ako J, Node K, Yasunaga H, Komuro I. Comparison of cardiovascular outcomes between SGLT2 inhibitors in diabetes mellitus. Cardiovascular Diabetology. 2022;21(1):67.
  99. Suzuki Y, Kaneko H, Okada A, Itoh H, Morita K, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Yamaguchi S, Kamiya K, Matsunaga A, Ako J, Fukui A, Nishiyama A, Yokoo T, Node K, Yamauchi T, Nangaku M, Yasunaga H, Komuro I. Change in Cardiovascular Health Metrics and Risk for Proteinuria Development: Analysis of a Nationwide Population-Based Database. American Journal of Nephrology. 2022;53(2-3):240-248.
  100. Suzuki Y, Kaneko H, Okada A, Matsuoka S, Itoh H, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Yamaguchi S, Node K, Yamauchi T, Yasunaga H, Komuro I. Prediabetes in Young Adults and Its Association with Cardiovascular Health Metrics in the Progression to Diabetes. Journal of Clinical Endocrinology & Metabolism. 2022;107(7):1843-1853.
  101. Suzuki Y, Kaneko H, Okada A, Nangaku M, Yasunaga H, Komuro I. Kidney outcomes in patients with diabetes mellitus did not differ between individual sodium-glucose cotransporter-2 inhibitors. Kidney International. 2022;102(5):1147-1153.
  102. Suzuki Y, Kaneko H, Yano Y, Okada A, Itoh H, Matsuoka S, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Kamiya K, Matsunaga A, Ako J, Node K, Yasunaga H, Komuro I. Glycemic status and the association of change in blood pressure with incident cardiovascular disease. American Heart Journal. 2022;254:48-56.
  103. Suzuki Y, Kaneko H, Yano Y, Okada A, Itoh H, Matsuoka S, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Matsunaga A, Node K, McEvoy JW, Lam CSP, Oparil S, Yasunaga H, Komuro I. Association of Cardiovascular Health Metrics with Risk of Transition to Hypertension in Non-Hypertensive Young Adults. American Journal of Hypertension. 2022;35(10):858-866.
  104. Suzuki Y, Kaneko H, Yano Y, Okada A, Itoh H, Matsuoka S, Fujiu K, Yamaguchi S, Michihata N, Jo T, Takeda N, Morita H, Node K, Kim HC, Viera AJ, Oparil S, Yasunaga H, Komuro I. Age-Dependent Relationship of Hypertension Subtypes with Incident Heart Failure. JAHA. 2022;11(9):e025406.
  105. Suzuki Y, Kaneko H, Yano Y, Okada A, Itoh H, Ueno K, Matsuoka S, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Yokota I, Node K, Yasunaga H, Komuro I. Dose-dependent relationship of blood pressure and glycemic status with risk of aortic dissection and aneurysm. European Journal of Preventive Cardiology. 2022;29(18):2338-2346.
  106. Tagami T, Yamakawa K, Endo A, Hayakawa M, Ogura T, Hirayama A, Yasunaga H. Japanese Multicenter Research of COVID-19 by Assembling Real-world Data: A Study Protocol. Annals of Clinical Epidemiology. 2022;4(3): 92-100.
  107. Taguchi R, Shigemi D, Yasunaga H. Trends in antihypertensive prescription for pregnant women with hypertension and their peripartum outcomes before and after label and guideline revisions in Japan. Hypertension Research. 2022;45(11):1823-1831.
  108. Tahara S, Hattori Y, Aso S, Uda K, Kumazawa R, Matsui H, Fushimi K, Yasunaga H, Morita A. Trends in Surgical Procedures for Spontaneous Intracerebral Hemorrhage in Japan. Journal of Stroke and Cerebrovascular Diseases. 2022;31(9):106664.
  109. Takeuchi Y, Iwagami M, Ono S, Michihata N, Uemura K, Yasunaga H. A post-marketing safety assessment of COVID-19 mRNA vaccination for serious adverse outcomes using administrative claims data linked with vaccination registry in a city of Japan. Vaccine. 2022;40(52):7622-7630.
  110. Ueno K, Kamiya K, Kaneko H, Okada A, Itoh H, Fujiu K, Takeda N, Morita H, Michihata N, Jo T, Yasunaga H, Komuro I. Acute-phase initiation of cardiac rehabilitation for improvement in activities of daily living in patients hospitalized for acute heart failure. Journal of Cardiovascular Development and Disease. 2022;9(4):97.
  111. Ueno K, Kaneko H, Kamiya K, Itoh H, Okada A, Suzuki Y, Matsuoka S, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Ako J, Node K, Yamauchi T, Yasunaga H, Komuro I. Relationship of normal-weight central obesity with the risk for heart failure and atrial fibrillation: Analysis of a nationwide health check-up and claims database. European Heart Journal Open. 2022;2(3):oeac026.
  112. Ueno K, Kaneko H, Kamiya K, Itoh H, Okada A, Suzuki Y, Matsuoka S, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Ako J, Yasunaga H, Komuro I. Clinical utility of simple subjective gait speed for the risk stratification of heart failure in a primary prevention setting. Scientific Reports. 2022;12(1):11641.
  113. Urushiyama H, Jo T, Hasegawa W, Yokoyama A, Ando T, Sakamoto Y, Kumazawa R, Uda K, Michihata N, Awano N, Hiroki M, Fushimi K, Yasunaga H, Nagase T. Effect of nintedanib on acute exacerbations of fibrosing interstitial lung diseases: A national database study in Japan. ERJ Open Research. 2022;8(4):00209-2022.
  114. Wada Y, Takahashi H, Matsui H, Yasunaga H, Fujiwara H, Sasabuchi Y. Adhesion barriers and intraperitoneal or uterine infections after cesarean section: A retrospective cohort study. Surgery. 2022;172(6):1722-1727.
  115. Yamamoto M, Yasunaga H, Kakinoki R, Tsubokawa N, Morita A, Tanaka K, Sakai A, Kurahashi T, Hirata H; CeCORD J study Group. The CeCORD-J study on collagenase injection versus aponeurectomy for Dupuytren’s contracture compared by hand function and cost effectiveness. Scientific Reports. 2022;12(1):9094.
  116. Yamamoto R, Kaito D, Homma K, Endo A, Tagami T, Suzuki M, Umetani N, Yagi M, Nashiki E, Suhara T, Nagata H, Kabata H, Fukunaga K, Yamakawa K, Hayakawa M, Ogura T, Hirayama A, Yasunaga H, Sasaki J; J-RECOVER study group. Early intubation and decreased in-hospital mortality in patients with coronavirus disease 2019. Crit Care. 2022;26(1):124.
  117. Yamana H, Sasabuchi Y, Matsui H, Michihata N, Jo T, Yasunaga H. Maoto plus neuraminidase inhibitor versus neuraminidase inhibitor alone for reducing hospitalisation in older adults with seasonal influenza. Annals of Clinical Epidemiology. 2022;4:120-128
  118. Yamana H, Tsuchiya A, Horiguchi H, Morita S, Kuroki T, Nakai K, Nishimura H, Jo T, Fushimi K, Yasunaga H. Validity of a model using routinely collected data for identifying infections following gastric, colorectal, and liver cancer surgeries. Pharmacoepidemiology and Drug Safety. 2022;31(4):452-460.
  119. Yamazaki R, Ohbe H, Matsuda Y, Kito S, Shigeta M, Morita K, Matsui H, Fushimi K, Yasunaga H. Early electroconvulsive therapy in patients with bipolar depression: a propensity score-matched analysis using a nationwide inpatient database. Journal of Affective Disorders. 2022;312:245-251.
  120. Zhang L, Michihata N, Matsui H, Fushimi K, Yasunaga H, Tsuda Y, Tanaka S, Kobayashi H. Preoperative Arterial Embolization and Wound Complications After Resection of Malignant Bone Tumor in the Pelvis: A Nationwide Database Study. Japanese Journal of Clinical Oncology. 2022;52(10):1176-1182.

[2021]

  1. Aso S, Matsui H, Fushimi K, Yasunaga H. Dexmedetomidine and mortality from sepsis requiring mechanical ventilation. Journal of Intensive Care Medicine. 2021;36(9):1036-1043
  2. Chinen T, Sasabuchi Y, Matsui H, Yasunaga H. Association between third-generation fluoroquinolones and Achilles tendon rupture: a self-controlled case series analysis. Annals of Family Medicine. 2021;19(3):212-216.
  3. Awano N, Jo T, Yasunaga H, Inomata M, Kuse N, Tone M, Morita K, Matsui H, Fushimi K, Nagase T, Izumo T. Body mass index and in-hospital mortality in patients with acute exacerbation of idiopathic pulmonary fibrosis. ERJ Open Research. 2021;7(2):00037-2021.
  4. Enomoto Y, Iwagami M, Tsuchiya A, Morita K, Abe T, Kido T, Uda K, Inokuchi R, Yasunaga H, Inoue Y, Tamiya N. Dexmedetomidine use and mortality in mechanically ventilated patients with severe burns: a cohort study using a national inpatient database in Japan. Burns. 2021;47(7):1502-1510.
  5. Hamada S, Nakajima M, Kaszynski RH, Kumazawa R, Matui H, Fushimi K, Goto H, Yamaguchi Y, Yasunaga H. In-hospital mortality among patients with invasive non-group A β-hemolytic Streptococcus treated with clindamycin combination therapy: A nationwide cohort study. Acute Medicine & Surgery. 2021;8(1):e634.
  6. Hashimoto Y, Michihata N, Yamana H, Shigemi D, Morita K, Matsui H, Yasunaga H, Aihara M. Intraocular pressure-lowering medications during pregnancy and risk of neonatal adverse outcomes: a propensity score analysis using a large database. British Journal of Ophthalmology. 2021;105(10):1390-1394.
  7. Hashimoto Y, Michihata N, Matsui H, Ishimaru M, Fushimi K, Yasunaga H, Aihara M, Takao M, Obata R. Recent trends in vitreoretinal surgery: a nationwide database study in Japan, 2010–2017. Japanese Journal of Ophthalmology. 2021;65(1):54-62
  8. Hatachi T, Michihata N, Inata Y, Takeuchi M, Matsui H, Fushimi K, Yasunaga H. Prognostic factors among children with acute encephalitis/encephalopathy associated with viral and other pathogens. Clinical Infectious Disease. 2021;73(1):76-82.
  9. Hattori Y, Tahara S, Aso S, Matsui H, Fushimi K, Yasunaga H, Morita A. Prophylactic steroid administration and complications after transsphenoidal pituitary surgery: a nationwide inpatient database study in Japan. British Journal of Anaesthesia. 2021;127(2):e41-e43.
  10. Hirose N, Morita K, Nakamura M, Fushimi K, Yasunaga H. Association between the duration of physical restraint and pulmonary embolism in psychiatric patients: A nested case–control study using a Japanese nationwide database. Archives of Psychiatric Nursing 2021;35(5):534-540.
  11. Honda A, Michihata N, Iizuka Y, Mieda T, Takasawa E, Ishiwata S, Matsui H, Fushimi K, Yasunaga H, Chikuda H. Clinical features and post-treatment complications of isolated C2 odontoid fractures: a retrospective analysis using a national inpatient database in Japan. European Spine Journal. 2021;30(12):3631-3638.
  12. Hoshina K, Kato M, Ishimaru S, Michihata N, Yasunaga H, Komori K, Japanese Committee for Stentgraft Management. Effect of the urgency and landing zone on rates of in-hospital death, stroke, and paraplegia after thoracic endovascular aortic repair in Japan. Journal of Vascular Surgery. 2021;74(2):556-568.e2.
  13. Ikawa F, Isobe N, Michihata N, Oya S, Ohata K, Saito K, Yoshida K, Fushimi K, Yasunaga H, Tominaga T, Kurisu K. Inhospital complications after surgery in elderly patients with asymptomatic or minor symptom meningioma: a nationwide registry study. World Neurosurgery. 2021;148:e459-e470.
  14. Itoh H, Kaneko H, Kiriyama H, Kamon T, Fujiu K, Morita K, Michihata N, Jo T, Takeda N, Morita H, Yasunaga H, Komuro I. Metabolically Healthy Obesity and the Risk of Cardiovascular Disease in General Population: Analysis of a Nationwide Epidemiological Database. Circ J 2021;85:914-920
  15. Itoh H, Kaneko H, Kiriyama H, Kamon T, Fujiu K, Morita K, Yotsumoto H, Michihata N, Jo T, Takeda N, Morita H, Yasunaga H, Komuro I. Reverse J-shaped relationship between body mass index and in-hospital mortality of patients hospitalized for heart failure in Japan. Heart and Vessels. 2021;36(3):383-392.
  16. Itoh H, Kaneko H, Fujiu K, Kiriyama H, Morita K, Kamon T, Michihata N, Jo T, Takeda N, Morita H, Yasunaga H, Komuro I. Risk Factors and Lifestyles in the Development of Atrial Fibrillation Among Individuals Aged 20-39 Years. American Journal of Cardiology. 2021;155:40-44.
  17. Iwagami M, Kumazawa R, Miyamoto Y, Ito Y, Ishimaru M, Morita K, Hamada S, Tamiya N, Yasunaga H. Risk of Cancer in Association with Ranitidine and Nizatidine vs Other H2 Blockers: Analysis of the Japan Medical Data Center Claims Database 2005-2018. Drug Safety. 2021;44(3):361-371.
  18. Jimba T, Kaneko H, Yano Y, Itoh H, Yotsumoto H, Seki H, Morita K, Kiriyama H, Kamon T, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Nishiyama A, Node K, Yasunaga H, Komuro I.Relation of the Metabolic Syndrome to Incident Colorectal Cancer in Young Adults Aged 20 to 49 Years. American Journal of Cardioloy 2021;158:132−138.
  19. Jin X, Tamiya N, Uda K, Yasunaga H. The impact of additional payments on functional decline among long-term care health facility residents in Japan. Age and Ageing. 2021;50(6):2055-2062.
  20. Jo T, Michihata N, Yamana H, Morita K, Ishimaru M, Yamauchi Y, Hasegawa W, Urushiyama H, Uda K, Matsui H, Fushimi K, Yasunaga H, Nagase T. Risk of drug-induced interstitial lung disease in hospitalised patients: a nested case–control study. Thorax. 2021;76(12):1193-1199.
  21. Kaneko H, Itoh H, Kamiya K, Morita K, Sugimoto T, Konishi M, Kiriyama H, Kamon T, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Yasunaga H, Komuro I. Acute-Phase Initiation of Cardiac Rehabilitation and Clinical Outcomes in Hospitalized Patients for Acute Heart Failure. Int J Cardiol. 2021;340:36-41.
  22. Kaneko H, Yano Y, Itoh H, Morita K, Kiriyama H, Kamon T, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Nishiyama A, Node K, Bakris G, Miura K, Muntner P, Viera AJ, Oparil S, Lloyd-Jones DM, Yasunaga H, Komuro K. Untreated Hypertension and Subsequent Incidence of Colorectal Cancer: Analysis of a Nationwide Epidemiological Database. Journal of American Heart Association 2021;10(22):e022479.
  23. Kaneko H, Yano Y, Itoh H, Morita K, Kiriyama H, Kamon T, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Node K, Carey RM, Lima JAC, Oparil S, Yasunaga H, Komuro I. Association of Blood Pressure Classification Using the 2017 American College of Cardiology/American Heart Association Blood Pressure Guideline With Risk of Heart Failure and Atrial Fibrillation. Circulation. 2021;143(23):2244-2253.
  24. Kaneko H, Itoh H, Yotsumoto H, Kiriyama H, Kamon T, Fujiu K, Morita K, Michihata N, Jo T, Takeda N, Morita H, Yasunaga H, Komuro I. Impact of hospital volume on clinical outcomes of hospitalized heart failure patients: Analysis of a nationwide database including 447,818 patients with heart failure. BMC Cardiovascular Disorders. 2021;21:49
  25. Kaneko H, Itoh H, Kiriyama H, Kamon T, Fujiu K, Morita K, Michihata N, Jo T, Takeda N, Morita H, Yasunaga H, Komuro I. Possible association between eating behaviors and cardiovascular disease in the general population: Analysis of a nationwide epidemiological database. Atherosclerosis 2021;320:79-85.
  26. Kaneko H, Itoh H, Morita K, Sugimoto T, Konishi M, Kamiya K, Kiriyama H, Kamon T, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Yasunaga H, Komuro I. Early Initiation of Feeding and In-hospital Outcomes in Patients Hospitalized for Acute Heart Failure. American Journal of Cardiology 2021;145:85-90.
  27. Kaneko H, Itoh H, Kiriyama H, Kamon T, Fujiu K, Morita K, Michihata N, Jo T, Takeda N, Morita H, Yasunaga H, Komuro I. Lipid Profile and Subsequent Cardiovascular Disease among Adults Aged < 50 Years. American Journal of Cardiology 2021;142:59-65.
  28. Kaneko H, Itoh H, Kiriyama H, Kamon T, Fujiu K, Morita K, Michihata N, Jo T, Takeda N, Morita H, Yasunaga H, Komuro I. Fasting plasma glucose and subsequent cardiovascular disease among young adults: Analysis of a nationwide epidemiological database. Atherosclerosis 2021;319:35-41.
  29. Kaneko H, Itoh H, Yotsumoto H, Kiriyama H, Kamon T, Fujiu K, Morita K, Kashiwabara K, Michihata N, Jo T, Morita H, Yasunaga H, Komuro I. Cardiovascular Health Metrics of 87,160 Couples: Analysis of a Nationwide Epidemiological Database. Journal of Atherosclerosis and Thrombosis. 2021;28(5):535-543.
  30. Katsuki R, Jo T, Yasunaga H, Ishimaru M, Sakamoto T. Outcomes of Self-expandable Metal Stent as Bridge to Surgery versus Emergency Surgery for Left-sided Obstructing Colon Cancer: A Retrospective Cohort Study. Am J Surg. 2021;221(1):168-173.
  31. Katsuki Y. Jo T, Yasunaga H, Kumazawa R, Uda K. Outcomes of Laparoscopic versus Open Pancreatoduodenectomy: A Nationwide Retrospective Cohort Study. Surgery. 2021;169(6):1427-1433.
  32. Kawata M, Taketomi S, Inui H, Matsui H, Fushimi K, Yamagami H, Yasunaga H, Tanaka S. Type of bone graft and primary diagnosis were associated with nosocomial surgical site infection after high tibial osteotomy: analysis of a national database. Knee Surgery, Sports Traumatology, Arthroscopy. 2021;29(2):429-436.
  33. Kim HS, Cheng HS, Yamana H, Lee S, Yoon NH, Lin YC, Fushimi K, Yasunaga H. Variations in Hip Fracture Inpatient Care in Japan, Korea, and Taiwan: An Analysis of Health Administrative Data. BMC Health Services Research. 2021;21(1):694.
  34. Kiriyama H, Kaneko H, Itoh H, Kamon T, Morita K, Jo T, Fujiu K, Daimon M, Takeda N, Morita H, Yasunaga H, Komuro I. Surgical Treatment for Infective Endocarditis in the Aging Society: a Nationwide Retrospective Study in Japan. Open Heart. 2021;8(1):e001627.
  35. Kitamura T, Nakajima M, Kawamura I, Kaszynski RH, Ohbe H, Sasabuchi Y, Matsui H, Fushimi K, Fukamizu S, Yasunaga H. Safety and effectiveness of intracardiac echocardiography in ventricular tachycardia ablation: A nationwide observational study. Heart and Vessels. 2021;36(7):1009-1015.
  36. Koizumi M, Ishimaru M, Matsui H, Fushimi K, Yamasoba T, Yasunaga H. Factors associated with the occurrence of stomal stenosis after tracheostomy in adults. Auris Nasus Larynx. 2021;48(5):973-977.
  37. Kondo Y, Ohbe H, Aso S, Matsui H, Fushimi K, Tanaka H, Yasunaga H. Efficacy of prophylactic antibiotics during extracorporeal membrane oxygenation: A nationwide cohort study. Annals of the American Thoracic Society. 2021;18(11):1861-1867.
  38. Konishi T, Fujiogi M, Michihata N, Kumazawa R, Matsui H, Fushimi K, Tanabe M, Seto Y, Yasunaga H. Outcomes of nonoperative treatment for gastroduodenal ulcer perforation: a nationwide study of 14,918 inpatients in Japan. Journal of Gastrointestinal Surgery 2021;25(11):2770-2777
  39. Konishi T, Fujiogi M, Michihata M, Morita K, Matsui H, Fushimi K, Tanabe M, Seto Y, Yasunaga H. Association between body mass index and localization of breast cancer: results from a nationwide inpatient database in Japan. Breast Cancer Research and Treatment. 2021;185(1):175-182.
  40. Konishi T. Fujiogi M, Michihata N, Morita K, Matsui H, Fushimi K, Tanabe M, Seto Y, Yasunaga H. Comparison of short-term surgical outcomes between men and women with breast cancer: a retrospective study using nationwide inpatient data in Japan. Breast Cancer Research and Treatment. 2021;186(3):731-739.
  41. Konishi T, Fujiogi M, Michihata N, Morita K, Matsui H, Fushimi K, Tanabe M, Seto Y, Yasunaga H. Comparing outcomes of nonoperative treatment for adhesive small bowel obstruction with and without antibiotics. Journal of Infection and Chemotherapy. 2021;27(5):690-695.
  42. Konishi T, Fujiogi M, Michihata N, Morita K, Matsui H, Fushimi K, Tanabe M, Seto Y, Yasunaga H. Comparisons of postoperative outcomes after breast cancer surgery in patients with and without renal replacement therapy: a matched-pair cohort study using a Japanese nationwide inpatient database. Breast Cancer. 2021;28(5):1112-1119.
  43. Konishi T, Fujiogi M, Michihata N, Niwa T, Morita K, Matsui H, Fushimi K, Tanabe M, Seto Y, Yasunaga H. Impact of body mass index on short-term outcomes after differentiated thyroid cancer surgery: a nationwide inpatient database study in Japan. European Thyroid Journal. 2021;11(1):e210081.
  44. Konishi T, Fujiogi M, Michihata N, Tanaka-Mizutani H, Morita K, Matsui H, Fushimi K, Tanabe M, Seto Y, Yasunaga H. Breast cancer surgery in patients with schizophrenia: short-term outcomes from a nationwide cohort. British Journal of Surgery. 2021;108:168–173.
  45. Kurakawa K, Okada A, Manaka K, Konishi T, Jo T, Ono S, Uda K, Michihata N, Matsui H, Fushimi K, Yamaguchi S, Yamauchi T, Nangaku M, Yasunaga H, Kadowaki T. Clinical characteristics and incidences of benign and malignant insulinoma using a national inpatient database in Japan. Journal of Clinical Endocrinology & Metabolism. 2021;106(12):3477-3486.
  46. Makito K, Matsui H, Fushimi K, Yasunaga H. Spinal epidural hematoma and abscess after neuraxial anesthesia: a historical cohort study using the Japanese Diagnosis Procedure Combination database. Canadian Journal of Anesthesia. 2021;68(1):42-52.
  47. Matsuda K, Jo T, Toyama K, Nakazaki K, Matsui H, Fushimi K, Yasunaga H. Efficacy of recombinant human soluble thrombomodulin in induction therapy for acute promyelocytic leukemia. Thrombosis Research. 2021;202:173-175.
  48. Matsuda K, Ise M, Shimura A, Honda A, Masamoto Y, Jo T, Yasunaga H, Kurokawa M. Use of wide-spectrum antimicrobials with blood culture tests during chemotherapy as an accurate marker of febrile neutropenia in the DPC database: A validation study. Journal of Infection and Chemotherapy. 2021;27(10):1541-1542.
  49. Matsuda K, Jo T, Toyama K, Nakazaki K, Matsui H, Fushimi K, Yasunaga H, Kurokawa M. Risk factors for early in-hospital death in patients who developed coagulopathy during induction therapy for acute promyelocytic leukemia: a nation-wide analysis in Japan. Annals of Hematology. 2021;100(10):2613-2619.
  50. Matsuda K, Jo T, Miyauchi M, Toyama K, Nakazaki K, Matsui H, Fushimi K, Yasunaga H, Kurokawa M. Difference of preventing effects of G-CSF according to age in patients with malignant lymphoma: a nation-wide analysis in Japan. Journal of Infection and Chemotherapy. 2021;27(8):1151-1155.
  51. Matsuzaki S, Kaneko H, Yano Y, Itoh H, Fukui A, Morita M, Kiriyama H, Kamon T, Fujiu K, Seki H, Michihata N, Jo T, Takeda N, Morita H, Nakamura S, Yokoo T, Nishiyama A, Node K, Yasunaga H, Komuro I. Association Between Blood Pressure Classification Using the 2017 ACC/AHA Blood Pressure Guideline and Retinal Atherosclerosis. American Journal of Hypertension. 2021;34(10):1049-1056.
  52. Miyamoto Y, Ohbe H, Ishimaru M, Matsui H, Fushimi K, Yasunaga H. Effect of tranexamic acid in patients with colonic diverticular bleeding: a nationwide inpatient database study. Journal of Gastroenterology and Hepatology 2021;36(4):999-1005.
  53. Miyamoto Y, Ohbe H, Goto T, Yasunaga H. Association between intensive care unit admission of a patient and mental disorders in the spouse: a retrospective matched-pair cohort study. Journal of Intensive Care. 2021;9(1):69.
  54. Miyano S, Michihata N, Sada K, Uda K, Matsui H, Fushimi K, Nangaku M, Yasunaga H. Comparison of fracture risk between proton pump inhibitors and histamine-2 receptor antagonists in AAV patients: A nested case-control study. Rheumatology. 2021;60(4):1717-1723.
  55. Mizuno S, Sachiko Ono 2, Hideo Yasunaga 3, Hirotaro Iwase 4. Factors associated with methamphetamine use in Japanese people who died of unnatural causes: Analysis using forensic autopsy reports. Forensic Science International. 2021;327:110946.
  56. Mongkonchoo K, Yamana H, Aso S, Machidad M, Takasaki Y, Jo T, Yasunaga H, Chongsuvivatwong Y, Liabsuetrakul T. Prediction of outpatient visits and expenditure under the Universal Coverage Scheme in Bangkok using subscriber’s attributes: a random forest analysis. Public Health in Practice. 2021;2:100190.
  57. Morita K, Fukahori H, Ogawara H, Iwagami M, Matsui H, Okura T, Itoh S, Fushimi K, Yasunaga H. Outcomes of a financial incentive scheme for dementia care by dementia specialist teams in acute-care hospitals: a difference-in-differences analysis of a nationwide retrospective cohort study in Japan. International Journal of Geriatric Psychiatry. 2021;36(9):1386-1397.
  58. Nakamura K, Ohbe H, Ikeda K, Uda K, Furuya H, Furuta S, Nakajima M, Sasabuchi Y, Matsui H, Fushimi K, Yasunaga H, Nakajima H. Intravenous cyclophosphamide in acute exacerbation of rheumatoid arthritis-related interstitial lung disease: a propensity-matched analysis using a nationwide inpatient database.   Seminars in Arthritis and Rheumatism. 2021;51(5):977-982.
  59. Naruse K, Shigemi D, Hashiguchi M, Imamura M, Yasunaga H, Arai T. Placental abruption in each phenotype of hypertensive disorders of pregnancy: a retrospective cohort study using a national inpatient database in Japan. Hypertension Research. 2021;44(2):232-238.
  60. Nozawa H, Ishizawa T, Yasunaga H, Ishii H, Sonoda H, Emoto S, Murono K, Sasaki K, Kawai K, Akamatsu N, Kaneko J, Arita J, Hasegawa K, Ishihara S. Open and/or laparoscopic one-stage resections of primary colorectal cancer and synchronous liver metastases –an observational study. Medicine. 2021;100(11):e25205.
  61. Oda K, Aso S, Hattori Y, Yamaguchi F, Matsui H, Fushimi K, Yasunaga H, Morita A. Snowfall reduces the risk of chronic subdural hematoma onset: Analysis of an administrative database in Japan. Surgial Neurology International 2021;12:69.
  62. Ohbe H, Nakamura K, Uda K, Matsui H, Yasunaga H. Effect of early rehabilitation on physical function in patients undergoing coronary artery bypass grafting: a nationwide inpatient database study. Journal of Clinical Medicine 2021;10(4):618
  63. Ohbe H, Matsui H, Fushimi K, Yasunaga H. Small-bore feeding tube versus large-bore sump tube for early enteral nutrition in mechanically ventilated patients: a nationwide inpatient database study. Clinical Nutrition. 2021;40(6):4113-4119.
  64. Ohbe H, Matsui H, Fushimi K, Yasunaga H. Epidemiology of Chronic Critical Illness in Japan: A Nationwide Inpatient Database Study. Crit Care Med 2021;49(1):70-78
  65. Ohbe H, Jo T, Matsui H, Fushimi K, Yasunaga H. Clinical trajectories of suicide attempts and self-harm in patients admitted to acute-care hospitals in Japan: a nationwide inpatient database study. Journal of Epidemiology. 2021;31(3):231-236.
  66. Ohbe H, Sasabuchi Y, Yamana H, Matsui H, Yasunaga H. Intensive care unit versus high-dependency care unit for mechanically ventilated patients with pneumonia: a nationwide comparative effectiveness study. The Lancet Regional Health – Western Pacific. 2021;13:100185.
  67. Ohbe H, Yasunaga H. Spouse’s cardiovascular disease as a risk factor for cardiovascular disease in middle-aged adults: a matched-pair cohort study. Circulation: Cardiovascular Quality and Outcomes. 2021;14(8):e007649.
  68. Ohbe H, Iwagami M, Sasabuchi Y, Yasunaga H. Increased risk of infective endocarditis after traumatic skin wound. Heart. 2021;107(23):1868-1874
  69. Ohbe H, Jo T, Matsui H, Fushimi K, Yasunaga H. Effect of Daikenchuto for mechanically ventilated patients with enteral feeding intolerance: a propensity score-matched analysis using a nationwide administrative inpatient database. Journal of Parenteral and Enteral Nutrition. 2021;45(8):1703-1713
  70. Okada A, Ono S, Yamaguchi S, Yamana H, Kurakawa K, Michihata N, Matsui H, Nangaku M, Yamauchi T, Yasunaga H, Kadowaki T. Association between nutritional guidance or ophthalmological examination and discontinuation of physician visits in patients with newly diagnosed diabetes: a retrospective cohort study using a nationwide database. Journal of Diabetes Investigation. 2021;12(9):1619-1631.
  71. Okada A, Yamana H, Morita K, Sato Y, Yamaguchi S, Kurakawa K, Michihata N, Matsui H, Fushimi K, Nangaku M, Yamauchi T, Yasunaga H, Kadowaki T. Potassium concentration in initial fluid therapy and in-hospital mortality of patients with diabetic ketoacidosis. Journal of Clinical Endocrinology & Metabolism. 2021;106(5):e2162-e2175.
  72. Okubo Y, Horimukai K, Michihata N, Morita K, Matsui H, Fushimi K, Yasunaga H. Association between early antibiotic treatment and clinical outcomes in children hospitalized for an asthma exacerbation. Journal of Allergy and Clinical Immunology. 2021:114-122.e14.
  73. Okubo Y, Michihata N, Morisaki N, Yoshida K, Matsui H, Fushimi K, Yasunaga H. Effects of glucocorticoids on hospitalized children with anaphylaxis. Pediatric Emergency Care. 2021;37(5):255-259.
  74. Ono S, Ishimaru M, Ida Y, Yamana H, Ono Y, Hoshi K, Yasunaga H. Validity of diagnoses and procedures in Japanese dental claims data. BMC Health Services Research. 2021;21(1):1116.
  75. Otaka S, Aso S, Matsui H, Fushimi K, Yasunaga H. Association between parenteral nutrition in the early phase and outcomes in patients with abdominal trauma undergoing emergency laparotomy: A retrospective nationwide study. Clinical Nutrition ESPEN 2021;41:371-376
  76. Otaka S, Aso S, Matsui H, Fushimi K, Yasunaga H.. Associations between early parenteral nutrition and in-hospital outcomes in underweight patients with gastrointestinal surgery. Clinical Nutrition ESPEN 2021;43:464-470.
  77. Sakamoto T, Fujiogi M, Matsui H, Fushimi K, Yasunaga H. Comparing perioperative mortality and morbidity of minimally invasive esophagectomy versus open esophagectomy for esophageal cancer: a nationwide retrospective analysis. Annals of Surgery. 2021;274(2):324-330.
  78. Sakamoto Y, Yamauchi Y, Jo T, Michihata N, Hasegawa W, Takeshima H, Matsui H, Fushimi K, Yasunaga H, Nagase T. In-hospital mortality associated with community-acquired pneumonia due to methicillin-resistant Staphylococcus aureus: a matched-pair cohort study. BMC Pulmonary Medicine. 2021;21(1):345.
  79. Sako A, Yasunaga H, Matsui H, Fushimi K, Yanai H, Gu Y, Ohmagari N. Hospitalization for Urinary Tract Infections in Japan, 2010–2015: A Retrospective Study Using a National Inpatient Database. BMC Infectious Diseases. 2021;21(1):1048.
  80. Sato D, Goto T, Uda K, Kumazawa R, Matsui H, Yasunaga H. Impact of national guidelines for antimicrobial stewardship to reduce antibiotic use in upper respiratory tract infection and gastroenteritis. Infection Control & Hospital Epidemiology 2021;42:280 – 286
  81. Sato Y, Morita K, Okada A, Matsui H, Fushimi K, Yasunaga H. Factors affecting in-hospital mortality of diabetic ketoacidosis patients: A retrospective cohort study. Diabetes Research and Clinical Practice 2021;171:108588.
  82. Sawada R, Yamana H, Shinoda Y, Tsuda Y, Matsui H, Fushimi K, Kobayashi H, Matsubayashi Y, Yasunaga H, Tanaka S, Haga N. Predictive factors of 30-day mortality after surgery for spinal metastasis: Analysis of a nationwide database. Journal of Orthopaedic Science. 2021;26(4):666-671.
  83. Seki M, Kaneko H, Morita H, Itoh H, Morita K, Matsuoka S, Kiriyama H, Kamon T, Fujiu K, Michihata N, Jo T, Takeda N, Yano Y, Nakamura S, Node K, Yasunaga H, Komuro I. Relation of Serum Uric Acid and Cardiovascular Events in Young Adults Aged 20-49 Years. American Journal of Cardiology 2021;152:150-157.
  84. Shigemi D, Isogai S, Uda K, Aso S, Matsui H, Fushimi K, Yasunaga H. Association between rehabilitation during hospitalization and perinatal outcomes among pregnant women with threatened preterm birth. The Journal of Maternal-Fetal & Neonatal Medicine. 2021;34(7):1028-1033
  85. Shigemi D, Hashimoto Y, Michihata N, Yasunaga H. Effect of Japanese herbal Kampo medicines on live birth rate in women with recurrent pregnancy loss. International Journal of Gynecology and Obstetrics. 2021;153(3):489-495.
  86. Shigemi D, Hashimoto Y, Michihata N, Yasunaga H. Impact of maternal depression and anxiety-related disorders on live birth rate in women with recurrent pregnancy loss. Human Fertility. 2021;20;1-8.
  87. Shigemi D, Morishima T, Yamana H, Yasunaga H, Miyashiro I. Validity of initial cancer diagnoses in the Diagnosis Procedure Combination data in Japan. Cancer Epidemiology. 2021;74:102016.
  88. Shinozaki N, Morita K, Matsui H, Jo T, Yasunaga H. Semisolid versus liquid nutrients and 30-day readmission in gastrostomy tube-fed patients: a propensity-matched analysis. Journal of Parenteral and Enteral Nutrition. 2021;45(4):720-728.
  89. Shiozawa M, Kaneko H, Itoh H, Morita K, Okada A, Matsuoka S, Kiriyama H, Kamon T, Fujiu K, Michihata N, Jo T, Takeda N, Morita H, Nakamura S, Node K, Yasunaga H, Komuro I. Association of Body Mass Index with Ischemic and Hemorrhagic Stroke. Nutrients. 2021;13(7):2343.
  90. Shirane S, Michihata N, Yoshiuchi K, Ariyoshi K, Iwase S, Morita K, Matsui H, Fushimi K, Yasunaga H. Evaluation of quality indicators near death in older adult cancer decedents in Japan: A nationwide retrospective cohort study. Japanese Journal of Clinical Oncology. 2021;51(11)1643–1648.
  91. Suzuki T, Michihata N, Aso S, Yoshikawa T, Saito K, Matsui H, Fushimi K, Yasunaga H. Sodium-containing versus sodium-trace preparations of IVIG for children with Kawasaki disease in the acute phase. European Journal of Pediatrics. 2021 ;180(11):3279-3286.
  92. Takano A, Yamana H, Ono S, Matsui H, Yasunaga H. Outpatient treatment following alcohol screening at health checkups and change in drinking patterns among excessive drinkers with lifestyle-related diseases. Preventive Medicine Reports. 2021;24:101549.
  93. Takiguchi T, Ohbe H, Nakajima M, Sasabuchi Y, Tagami T, Matsui H, Fushimi K, Yokobori S, Yasunaga H. Intermittent versus continuous neuromuscular blockade during target temperature management after cardiac arrest: a nationwide observational study. Journal of Critical Care 2021;62:276-282.
  94. Takeuchi Y, Kumamaru H, Hagiwara Y, Matsui H, Yasunaga H, Miyata H, Matsuyama Y. Sodium-glucose cotransporter-2 inhibitors and the risk of urinary tract infection among diabetic patients in Japan: Target trial emulation using a nationwide administrative claims database. Diabetes, Obesity and Metabolism. 2021;23(6):1379-1388.
  95. Tanaka G, Jo T, Tamiya H, Sakamoto Y, Hasegawa W, Matsui H, Fushimi K, Yasunaga H, Nagase T. Factors affecting in-hospital mortality of non-tuberculous mycobacterial pulmonary disease. BMC Infectious Diseases 2021;21:698.
  96. Taniguchi K, Ohbe H, Yamakawa K, Matsui H, Fushimi K, Yasunaga H. Recombinant thrombomodulin in disseminated intravascular coagulation associated with stage IV solid tumors: a nationwide observational study in Japan. Thrombosis and Haemostasis. 2021;121(1):36-45.
  97. Tsuchiya A, Tsutsumi Y, Yasunaga H, Yasuda S, Yuzawa K, Kushimoto S. Long-term Functional Outcomes, Quality of Life, and Patient Trajectory in 1 Trauma Survivors: A Study Protocol. Annals of Clinical Epidemiology. 2021;3(2):59–66.
  98. Ugata Y, Michihata N, Matsui H, Fushimi K, Yasunaga H. Impact of proton pump inhibitors on mortality and severe esophageal injury after catheter ablation for atrial fibrillation: a nationwide retrospective study using propensity score matching. Heart and Vessels. 2021;36(11):1730-1738.
  99. Urushiyama H, Jo T, Hasegawa W, Ando T, Sakamoto Y, Uda K, Matsui H, Fushimi K, Yasunaga H, Nagase T. Preoperative use of pirfenidone and reduced risk of postoperative severe respiratory complications in patients with idiopathic pulmonary fibrosis: propensity score-matched analysis using a nationwide database in Japan. Respirology. 2021;26(6):590-596.
  100. Yagi M, Morita K, Matsui H, Michihata N, Fushimi K, Koyama T, Fujitani J, Yasunaga H. Outcomes after Intensive Rehabilitation for Mechanically-ventilated Patients: A Nationwide Retrospective Cohort Study. Archives of Physical Medicine and Rehabilitation. 2021;102(2):280-289.
  101. Yamana H, Iba A, Tomio J, Ono S, Jo T, Yasunaga H. Treatment of latent tuberculosis infection in patients receiving biologic agents. Journal of Infection and Chemotherapy. 2021;27(2):243-249.
  102. Yamana H, Ono S, Michihata N, Jo T, Yasunaga H. Association between maoto use and hospitalization for seasonal influenza in a nonelderly cohort in Japan. Internal Medicine. 2021;60(21):3401-3408.
  103. Yamana H, Imai S, Yamasaki K, Horiguchi H, Ario K, Komatsu T, Sugimoto R, Katsushima S, Naganuma A, Mano Y, Yamashita T, Kamitsukasa H, Tsuruta S, Jo T, Yasunaga H, Fushimi K, Yatsuhashi H. Prognosis of patients with liver cirrhosis: a multi-center retrospective observational study. Hepatology Research. 2021;51(12):1196-1206.
  104. Yamazaki R, Ohbe H, Matsuda Y, Kito S, Morita K, Matsui H, Fushimi K, Yasunaga H. Early electroconvulsive therapy in patients with major depressive disorder: a propensity score-matched analysis using a nationwide inpatient database in Japan. The Journal of ECT. 2021;37(3):176-181.
  105. Yasui H, Michihata N, Matsui H, Fushimi K, Iwase S, Yoshiuchi K, Sakata Y, Yasunaga H. Association between ambulance use and hospitalization costs among heart failure patients. Heart and Vessels. 2021;36(5):654-658.
  106. Yokoyama A, Sakamoto Y, Jo T, Urushiyama H, Tamiya H, Tanaka G, Matsui H, Fushimi K, Yasunaga H, Nagase T. Pulmonary disease as a risk factor for transfusion-related acute lung injury. ERJ Open Research. 2021;7(3):00039-2021.
  107. Yoshihara S, Yamana H, Akahane M, Kishimoto M, Nishioka Y, Noda T, Matsui H, Fushimi K, Yasunaga H, Kasahara K, Imamura T. Association between Prophylactic Antibiotic Use for Transarterial Chemoembolization and Occurrence of Liver Abscess: A Retrospective Cohort Study. Clinical Microbiology and Infection. 2021; 27(10):1514.e5-1514.e10.
  108. Yoshii E, Yamana H, Ono S, Matsui H, Yasunaga H. Association between allergic or autoimmune diseases and incidence of endometriosis: A nested case-control study using a health insurance claims database. Am J Reprod Immunol. 2021;86(5):e13486.

[2020]

  1. Abe H, Sumitani M, Matsui H, Aso S, Inoue R, Fushimi K, Uchida K, Yasunaga H, Yamada Y. Comparing outcomes after peripheral nerve block versus general anesthesia for lower-extremity amputation: a nationwide exploratory retrospective cohort study in Japan. Regional Anesthesia & Pain Medicine 2020;45(6):399-404
  2. Ando T, Kawashima M, Jo T, Masuda K, Yamauchi Y, Tanaka G, Kage H, Suzukawa M, Nagai H, Matsui H, Fushimi K, Yasunaga H, Nagase T. Early Arterial Embolization and Mortality in Mechanically Ventilated Patients with Hemoptysis: a Nationwide Retrospective Cohort Study. Crit Care Med. 2020 Oct;48(10):1480-1486
  3. Aso S, Matsui H, Yasunaga H. Influence of the Fukushima Daiichi Nuclear Power Plant accident on the use of computed tomography in children with mild head injuries. Journal of Epidemiology. 2020;30(12):542-546
  4. Aso S, Matsui H, Fushimi K, Yasunaga H. Vasopressin versus epinephrine as adjunct vasopressors for septic shock. Intensive Care Medicine. 2020;46;1484–1485
  5. Aso S, Yasunaga H. Introduction to Instrumental Variable Analysis. Annals of Clinical Epidemiology. 2020;2(3):69-74
  6. Funakoshi H, Matsui H, Fushimi K, Yasunaga H. Association between Preventive Administration of Fasudil Hydrochloride and Post-interventional Neurological Outcomes in Patients with Aneurysmal Subarachnoid Hemorrhage. Annals of Clinical Epidemiology. 2020;2(4):107-112
  7. Fujiogi M, Michihata N, Matsui H, Fushimi K, Yasunaga H, Fujishiro J. Clinical features, practice patterns and outcomes of omphalocele: a descriptive study using a nationwide inpatient database in Japan. Annals of Clinical Epidemiology. 2020;2(2):61–68.
  8. Hashitmoto Y, Michihata N, Matsui H, Fushimi K, Yasunaga H, Aihara M. Reoperation rates after Ex-PRESS versus trabeculectomy for primary open-angle or normal-tension glaucoma: A national database study in Japan. EYE. 2020;34(6):1069-1076.
  9. Hashimoto Y, Michihata N, Yamana H, Shigemi D, Morita K, Matsui H, Yasunaga H, Aihara M. Ophthalmic corticosteroids in pregnant women with allergic conjunctivitis and adverse neonatal outcomes: propensity score analyses. American Journal of Ophthalmology. 2020;220:91-101
  10. Hatachi T, Michihata N, Takeuchi M, Matsui H, Fushimi K, Yasunaga H. Early steroid pulse therapy among children with influenza virus-associated encephalopathy. Journal of Intensive Care. 2020;8:62.
  11. Hattori Y, Tahara S, Aso S, Matsui H, Fushimi K, Yasunaga H, Morita A. Pituitary surgery’s epidemiology using a national inpatient database in Japan. Acta Neurochirurgic. 2020;162(6):1317-1323.
  12. Hayakawa I, Okubo Y, Nariai H, Michihata N, Matsui H, Fushimi K, Yasunaga H. Recent treatment patterns and variations for pediatric acute encephalopathy in Japan. Brain and Development. 2020;42(1):48-55.
  13. Hayashi K, Sasabuchi Y, Matsui H, Nakajima M, Ohbe H, Ono K, Yasunaga H. The clinical effect of the AN69ST membrane as a cytokine adsorption therapy for sepsis due to acute panperitonitis: a retrospective cohort study. Blood Purification. 2020;49(3):364-371.
  14. Hironaka K, Aso S, Suzuki M, Matano F, Matsui H, Fushimi K, Yasunaga H, Morita A. Outcomes in elderly Japanese patients treated for aneurysmal subarachnoid hemorrhage: A retrospective nationwide study. Journal of Stroke and Cerebrovascular Diseases. 2020;29(6):104795.
  15. Hirose N, Ishimaru M, Morita K, Yasunaga H. A review of studies using the Japanese National Database of Health Insurance Claims and Specific Health Checkups. Annals of Clinical Epidemiology. 2020;2(1):13-26.
  16. Honda C, Yamana H, Matsui H, Nagata S, Yasunaga H, Naruse T. Age in months and birth order in infant nonfatal injuries: A retrospective cohort study. Public Health in Practice. 2020;100005.
  17. Hosoi T, Yamana H, Tamiya H, Matsui H, Fushimi K, Akishita M, Yasunaga H, Ogawa S. Association between comprehensive geriatric assessment and short-term outcomes among older adult patients with stroke: a nationwide retrospective cohort study using propensity score and instrumental variable methods. EClinicalMedicine. 2020;23:100411
  18. Ikawa F, Michihata N, Matsushige T, Abiko M, Ishii D, Oshita J, Okazaki T, Sakamoto S, Kurogi R, Iihara K, Nishimura K, Morita A, Fushimi K, Yasunaga H, Kurisu K. In-hospital mortality and poor outcome after surgical clipping and endovascular coiling for aneurysmal subarachnoid hemorrhage using nationwide databases: a systematic review and meta-analysis. Neurosurgical Review. 2020;43(2):655-667.
  19. Ikawa F, Michihata N, Akiyama Y, Iihara K, Morita A, Kato Y, Yamaguchi S, Kurisu K, Fushimi K, Yasunaga H. Propensity Score Matching Analysis for the Patients of Unruptured Cerebral Aneurysm from a Post Hoc Analysis of a Nationwide Database in Japan. World Neurosurg. 2020;136:e371-e379.
  20. Itoh H, Kaneko H, et al. Serial Change in Clinical Presentations and Outcomes of 5,740 Patients Requiring Repeated Hospital Admissions (Four or More Times) due to Worsened Heart Failure. Int Heart J. 2020;61(6):1253-1257
  21. Jo T, Yasunaga H, Yamauchi Y, Mitani A, Hiraishi Y, Hasegawa W, Sakamoto Y, Matsui H, Fushimi K, Nagase T. Inhaled corticosteroid withdrawal may improve outcomes in elderly patients with COPD exacerbation: A nationwide database study. ERJ Open Research. 2020;6(1):00246-2019.
  22. Kaneko H, Itoh H, Yotsumoto H, Kiriyama H, Kamon T, Fujiu K, Morita K, Michihata N, Jo T, Morita H, Yasunaga H, Komuro I. Characteristics and Outcomes of Super-Elderly Patients (aged ≥90 Years) Hospitalized for Heart Failure: Analysis of a Nationwide Inpatient Database. Circulation Reports. 2020;2(8):393-399
  23. Kaneko H, Itoh H, Yotsumoto H, Kiriyama H, Kamon T, Fujiu K, Morita K, Michihata N, Jo T, Takeda N, Morita H, Yasunaga H, Komuro I. Association of Cancer with Outcomes in Patients Hospitalized for Heart Failure. Circulation Journal. 2020;84(10):1771-1778.
  24. Kaneko H, Itoh H, Yotsumoto H, Kiriyama H, Kamon T, Fujiu K, Morita K, Michihata N, Jo T, Morita H, Yasunaga H, Komuro I. Association of Body Weight Gain with Subsequent Cardiovascular Event in Non-Obese General Population without Overt Cardiovascular Disease. Atherosclerosis. 2020;308:39-44.
  25. Kaneko H, Itoh H, Kamon T, Fujiu K, Morita K, Michihata N, Jo T, Morita H, Yasunaga H, Komuro I. Association of Cardiovascular Health Metrics with Subsequent Cardiovascular Disease in Young Adults. Journal of the American College of Cardiology. 2020;76 (20):2414–2416
  26. Kaneko H, Itoh H, Yotsumoto H, Kiriyama H, Kamon T, Fujiu K, Morita K, Michihata N, Jo T, Morita H, Yasunaga H, Komuro I. Association between the number of hospital admissions and in-hospital outcomes in patients with heart failure. Hypertension Research. 2020;43(12):1385-1391
  27. Kaneko H, Itoh H, Kiriyama H, Kamon T, Fujiu K, Morita K, Michihata N, Jo T, Takeda N, Morita H, Yasunaga H, Komuro I. Restfulness from sleep and subsequent cardiovascular disease in the general population. Scientific Reports. 2020;10(1):19674.
  28. Kido T, Iwagami M, Yasunaga H, Abe T, Enomoto Y, Matsui H, Fushimi K, Takada H, Tamiya N. Outcomes of paediatric out-of-hospital cardiac arrest according to hospital characteristic defined by the annual number of paediatric patients with invasive mechanical ventilation: a nationwide study in Japan. Resuscitation. 2020;148:49-56.
  29. Kitamura T, Nakajima M, Kawamura I, Ohbe H, Sasabuchi Y, Matsui H, Fushimi K, Fukamizu S, Yasunaga H. Patient Characteristics, Procedure Details Including Catheter Devices, and Complications of Catheter Ablation for Ventricular Tachycardia. Journal of Arrhytmia. 2020;36(3):464-470
  30. Koizumi M, Suzuki S, Matsui H, Fushimi K, Yamasoba T, Yasunaga H. Trends in complications after functional endoscopic sinus surgery in Japan: a comparison with a previous study (2007–2013 vs. 2013–2017).   Auris Nasus Larynx. 2020;47(5):814-819
  31. Kondo Y, Ohbe H, Yasunaga H, Tanaka H. Initial Focused Assessment with Sonography in Trauma versus Initial Computed Tomography for Patients with Hemodynamically-Stable Torso Trauma. Emergency Medical Journal. 2020;37(1):19-24
  32. Kondo Y, Ohbe H, Matsui H, Fushimi K, Tanaka H, Yasunaga H. Proton pump inhibitors versus histamine-2 receptor antagonists for stress ulcer prophylaxis during extracorporeal membrane oxygenation: A propensity score-matched analysis. BMJ Open. 2020;10(9):e037534
  33. Konishi T, Fujiogi M, Niwa T, Morita K, Matsui H, Fushimi K, Tanabe M, Seto Y, Yasunaga H. Comparison of outcomes after differentiated thyroid cancer surgery performed with and without energy devices: a population-based cohort study using a nationwide database in Japan. International Journal of Surgery. 2020;77:198-204
  34. Konishi T, Fujiogi M, Michihata N, Morita K, Matsui H, Fushimi K, Tanabe M, Seto Y, Yausnaga H. Treatments and outcomes of encapsulating peritoneal sclerosis in patients undergoing peritoneal dialysis: 295 cases from a nationwide inpatient database in Japan. Peritoneal Dialysis International. 2020;40(6):593-599
  35. Kurakawa K, Okada A, Jo T, Ono S, Bessho K, Michihata N, Matsui H, Yamaguchi S, Fushimi K, Kadowaki T, Yasunaga H. Effects of prophylactic antibiotics on length of stay and total costs for pediatric acute pancreatitis: a nationwide database study in Japan. Pancreas. 2020;49(10):1321-1326
  36. Makito K, Matsui H, Fushimi K, Yasunaga H. Volatile versus Total Intravenous Anesthesia for Cancer Prognosis in Patients Having Digestive Cancer Surgery: A Nationwide Retrospective Cohort Study Anesthesiology. 2020;133(4):764-773
  37. Makito K, Matsui H, Fushimi K, Yasunaga H. Incidences and risk factors for post-dural puncture headache after neuraxial anaesthesia: a national inpatient database study in Japan. Anaesthesia and Intensive Care. 2020;48(5):381-388
  38. Matsuda K, Jo T, Miyauchi M, Toyama K, Nakazaki K, Matsui H, Fushimi K, Yasunaga H, Kurokawa M. Primary prophylaxis with pegfilgrastim in patients with newly-diagnosed diffuse large B-cell lymphoma: propensity score and instrumental variable analyses. Leukemia Lymphom. 2020;61(10):2435-2441
  39. Minami T, Yamana H, Matsui H, Fushimi K, Yasunaga H. Postoperative Outcomes after Tubeless, Totally Tubeless, Standard and Standard with ureteral stent Percutaneous Nephrolithotomy: a Nationwide Retrospective Study in Japan. Urologia Internationalis. 2020;104(5-6):445-451
  40. Miyakuni Y, Nakajima M, Ohbe H, Sasabuchi Y, Kaszynski RH, Ishimaru M, Matsui H, Fushimi K, Yamaguchi Y, Yasunaga H. Angiography versus colonoscopy in patients with severe lower gastrointestinal bleeding: a nation-wide observational study. Acute Medicine & Surgery. 2020;7(1):e533.
  41. Miyamoto Y, Iwagami M, Aso S, Matsui H, Doi K, Yasunaga H. Pregabalin and injury: a nested case-control and case-crossover study. Pharmacoepidemiology and Drug Safety. 2020;29(5):558-564
  42. Miyamoto Y, Ohbe H, Matsui H, Fushimi K, Yasunaga H. Effect of carbazochrome sodium sulfonate in patients with colonic diverticular bleeding: propensity score matching analyses using a nationwide inpatient database. Internal Medicine. 2020;59(15):1789-1794
  43. Miyamoto Y, Aso S, Iwagami M, Morita K, Fushimi K, Hamasaki Y, Nangaku M, Doi K, Yasunaga H. Expanded indication for recombinant tissue plasminogen activator from 3 to 4.5 hours after onset of stroke in Japan. Journal of Stroke and Cerebrovascular Diseases. 2020;29(12):105341
  44. Miyamoto Y, Aso S, Iwagami M, Yasunaga H, Matsui H, Fushimi K, Hamasaki Y, Nangaku M, Doi K. Association between intravenous thiamine and mortality in patients with septic shock: A nationwide observational study. Crit Care Med. 2020;48(8):1135-1139
  45. Mouri H, Jo T, Matsui H, Fushimi K, Yasunaga H. Impact of glucocorticoid supplementation on reducing perioperative complications in patients on long-term glucocorticoid medication: a propensity score analysis using a nationwide inpatient database. American Journal of Surgery. 2020;220(3):648-653
  46. Mouri H, Jo T, Matsui H, Fushimi K, Yasunaga H. Effect of Sugammadex on Postoperative Myasthenic Crisis in Myasthenia Gravis Patients: Propensity Score Analysis of a Japanese Nationwide Database. Anesthesia and Analgesia. 2020;130(2):367-373.
  47. Nakagami G, Morita K, Matsui H, Yasunaga H, Fushimi K, Sanada H. Association between pressure injury status and hospital discharge to home: a retrospective observational cohort study using a national inpatient database. Annals of Clinical Epidemiology. 2020;2(2):38–50.
  48. Nakajima M, Aso S, Matsui H, Fushimi K, Yasunaga H. Hyperbaric oxygen therapy and mortality from carbon monoxide poisoning: a nationwide observational study. Am J Emerg Med. 2020;38(2):225-230
  49. Nakajima M, Aso S, Matsui H, Kaszynski RH, Fushimi K, Yamaguchi Y, Yasunaga H. Prevalence of myocardial injury required percutaneous coronary intervention in acute carbon monoxide poisoning. European Journal of Emergency Medicine 2020;27(3):213-216.
  50. Nakajima M, Ono S, Michihata N, Kaszynski RH, Matsui. H, Yamaguchi Y, Yasunaga H. Epinephrine autoinjector prescription patterns for severe anaphylactic patients in Japan: A retrospective analysis of health insurance claims data. Allergology International. 2020;69:424-428
  51. Nakamura K, Ohbe H, Matsui H, Takahashi Y, Marushima A, Inoue Y, Fushimi K, Yasunaga H. Changes in Real-World Practice Patterns of Antiepileptic Drugs for Status Epilepticus: a Nationwide Observational Study in Japan. Neurologia medico-chirurgica. 2020;60(3):156-163
  52. Nakamura K, Ohbe H, Matsui H, Naraba H, Nakano H, Takahashi Y, Fushimi K, Yasunaga H. Phenytoin versus fosphenytoin for second-line treatment of status epilepticus: propensity score matching analysis using a nationwide inpatient database. Seizure. 2020;80:124-130
  53. Obikane E, Yamana H, Yasunaga H, Kawakami N. Cumulative visits for care of minor injuries are associated with traumatic brain injury in young children. Acta Paediatrica. 2020;109(12):2775-2782
  54. Ohbe H, Jo T, Matsui H, Fushimi K, Yasunaga H. Differences in effect of early enteral nutrition on mortality among ventilated adults with shock requiring low-, medium-, and high-dose noradrenaline: a propensity-matched analysis. Clinical Neutrition. 2020;39(2):460-467
  55. Ohbe H, Jo T, Matsui H, Fushimi K, Yasunaga H. Early enteral nutrition in patients with severe traumatic brain injury: a propensity score-matched analysis using a nationwide inpatient database in Japan. American Journal of Clinical Nutrition. 2020;111:378–384
  56. Ohbe H, Morita K, Matsui H, Fushimi K, Yasunaga H. Stress ulcer prophylaxis plus enteral nutrition versus enteral nutrition alone in critically ill patients at risk for gastrointestinal bleeding: a propensity-matched analysis. Intensive Care Medicine. 2020;46(10):1948-1949
  57. Ohbe H, Ogura T, Matsui H, Yasunaga H. Extracorporeal cardiopulmonary resuscitation for acute aortic dissection during cardiac arrest: a nationwide retrospective observational study. Rescuscitation. 2020;156:237-243
  58. Ohbe H, Goto T, Miyamoto Y, Yasunaga H. Risk of cardiovascular events after spouse’s ICU admission. Circulation. 2020;142(17):1691-1693
  59. Okada A, Yamana H, Yamaguchi S, Kurakawa IK, Matsui H, Fushimi K, Nangaku M, Kadowaki T, Yasunaga H. Outcomes of Lactulose plus Branched-Chain Amino Acid Infusion and Lactulose Alone for Hepatic Encephalopathy: A Retrospective Cohort Study Using a National Inpatient Database. Hepatology Research. 2020;50(6):693-703
  60. Okubo Y, Miura M, Kobayashi T, Morisaki N, Michihata N, Matsui H, Fushimi K, Yasunaga H. The impact of changes in clinical guideline on practice patterns and healthcare utilizations for Kawasaki disease in Japan. Frontiers in Pediatrics, section Pediatric Immunology. 2020;8:114.
  61. Okubo Y, Uda K, Kinoshita N, Horikoshi Y, Miyairi I, Michihata N, Matsui H, Fushimi K, Yasunaga H. National trends in appropriate antibiotics use among pediatric inpatients with uncomplicated lower respiratory tract infections in Japan. Journal of Infection and Chemotherapy. 2020 ;26(11):1122-1128
  62. Ono S, Ono Y, Koide D, Yasunaga H. Relationship between severe respiratory depression and codeine-containing antitussives in children: a nested case-control study. Journal of Epidemiology. 2020;30(3):116-120
  63. Ono S, Ono Y, Koide D, Yasunaga H. Association between routine nephropathy monitoring and subsequent change in estimated glomerular filtration rate in patients with diabetes mellitus: a Japanese non-elderly cohort study. Journal of Epidemiology. 2020;30(8):326-331
  64. Otaka S, Aso S, Matsui H, Fushimi K, Yasunaga H. Early versus late rib fixation in patients with traumatic rib fractures: a nationwide study. Annals of Thoracic Surgery. 2020;110(3):988-992.
  65. Sakamoto T, Fujiogi M, Matsui H, Fushimi K, Yasunaga H. Short-term outcomes of laparoscopic and open total gastrectomy for gastric cancer: a nationwide retrospective cohort analysis. Annals of Surgical Oncology. 2020;27(2):518-526
  66. Sakamoto T, Fujiogi M, Matsui H, Fushimi K, Yasunaga H. Timing of cholecystectomy after percutaneous transhepatic gallbladder drainage for acute cholecystitis: a nationwide inpatient database study. HPB. 2020;22:920-6
  67. Sakamoto T, Fujiogi M, Matsui H, Fushimi K, Yasunaga H. Clinical features and outcomes of nonocclusive mesenteric ischemia after cardiac surgery: a retrospective cohort study. Heart and Vessels. 2020;35(5):630-636
  68. Sakamoto T, Fujiogi M, Lefor AK, Matsui H, Fushimi K, Yasunaga H. Stent as a bridge to surgery or immediate colectomy for malignant right colonic obstruction: propensity-scored, national database study. Brit J Surg. 2020;107(10):1354-1362.
  69. Sato D, Uda K, Kumazawa R, Matsui H, Yasunaga H. Mortality and morbidity following postoperative use of short-term, low-dose quetiapine versus risperidone in patients with diabetes: analysis using a national inpatient database. Pharmacoepidemiology and Drug Safety. 2020;29(12):1703-1709.
  70. Shigemi D, Ishimaru M, Matsui H, Fushimi K, Yasunaga H. Suicide attempts during pregnancy and perinatal outcomes. Journal of Psychiatric Research. 2020;133:101-105
  71. Shigemi D, Ishimaru M, Matsui H, Fushimi K, Yasunaga H. Suicide attempts among pregnant and postpartum women in Japan: a nationwide retrospective cohort study. J Clin Psychiatry. 2020;81(3):19m12993
  72. Shigemi D, Morishima T, Shibata A, Tabuchi T, Yasunaga H, Miyashiro I. Comparison of overall mortality between hysterectomy and concurrent chemoradiotherapy for the primary treatment of localized or regionally extended cervical cancer. Annals of Clinical Epidemiology. 2020; 2(3):75-83
  73. Shoji K, Michihata N, Miyairi I, Matsui H, Fushimi K, Yasunaga H. Recent Epidemiology of Pneumocystis Pneumonia in Japan. Journal of Infection and Chemotherapy. 2020;26(12):1260-1264
  74. Suzuki J, Sasabuchi Y, Hatakeyama S, Matsui H, Sasahara T, Morisawa Y, Yamada T, Yasunaga H. Histamine-2 receptor antagonists versus proton pump inhibitors for septic shock after lower gastrointestinal tract perforation: A retrospective cohort study using a national inpatient database. Journal of Intensive Care. 2020;8:56.
  75. Suzuki J, Sasabuchi Y, Hatakeyama S, Matsui H, Sasahara T, Morisawa Y, Yamada T, Yasunaga H. The effect of antithrombin added to recombinant human soluble thrombomodulin for severe community-acquired pneumonia-associated disseminated intravascular coagulation: a retrospective cohort study using a nationwide inpatient database. J Intensive Care. 2020;8:8
  76. Suzuki T, Michihata N, Yoshikawa T, Hata T, Matsui H, Fushimi K, Yasunaga H. High-dose versus low-dose intravenous immunoglobulin for treatment of children with Kawasaki disease weighing 25 kg or more. European Journal of Pediatrics. 2020;179(12):1901-1907
  77. Takiguchi T, Nakajima M, Ohbe H, Sasabuchi Y, Matsui H, Fushimi K, Kim S, Yokota H, Yasunaga H. Vasodilator therapy and mortality in non-occlusive mesenteric ischemia: a nationwide observational study. Crit Care Med. 2020;48(5):e356-e361.
  78. Tanaka H, Yamana H, Matsui H, Fushimi K, Yasunaga H. Proportion and risk factors of cholesterol crystal embolization after cardiovascular procedures: a retrospective national database study. Heart and Vessels. 2020;35(9):1250-1255
  79. Taniguchi K, Ohbe H, Yamakawa K, Matsui H, Fushimi K, Yasunaga H. Antithrombin use and mortality in patients with stage IV solid tumor-associated disseminated intravascular coagulation: A nationwide observational study in Japan. BMC Cancer. 2020;20(1):867
  80. Tsuda Y, Tsoi K, Stevenson JD, Laitinen M, Ferguson P, Wunder J, Griffin A, van de Sande MAJ, van Praag VM, Leithner A, Fujiwara T, Yasunaga H, Matsui H, Parry MC, Jeys LM. Development and external validation of nomograms to predict sarcoma-specific death and disease progression after surgical resection of localised high-grade conventional primary central chondrosarcoma and dedifferentiated chondrosarcoma: a retrospective, multicentre, cohort study. The Bone & Joint Journal. 2020;102-B(12):1752-1759
  81. Ugata Y, Michihata N, Matsui H, Fushimi K, Yasunaga H. Periprocedural hypotension after conscious sedation versus local anesthesia during defibrillator implantation for left ventricular dysfunction: Analysis of a national inpatient database in Japan. Heart and Vessels. 2020;35:118–124
  82. Ugata Y, Michihata N, Matsui H, Fushimi K, Yasunaga H. Optimal timing and safety of non-vitamin K antagonist oral anticoagulant for atrial-fibrillation-related ischemic stroke. Annals of Clinical Epidemiology. 2020;2(1):3-12.
  83. Yamagami R, Inui H, Jo T, Kawata M, Taketomi S, Kono K, Kawaguchi K, Sameshima S, Kage T, Matsui H, Fushimi K, Yasunaga H, Tanaka S. Unicompartmental Knee Arthroplasty is Associated with Lower Proportions of Surgical Site Infection Compared with Total Knee Arthroplasty: A Retrospective Nationwide Database Study. The Knee. 2020;28:124-130
  84. Yamana H, Ono S, Okada A, Jo T, Yasunaga H. Association between mandatory health examination attendance and diabetes treatment initiation among employees being treated for hypertension. Journal of Occupational Health. 2020;62(1):e12183.
  85. Yamana H, Ono S, Michihata N, Jo T, Yasunaga H. Outpatient prescription of Kampo formulations in Japan. Internal Medicine. 2020;59(22):2863-2869
  86. Yasunaga H. Protection of personal information in real-world data in Japan. Annals of Clinical Epidemiology. 2020;2(1):1-2.
  87. Yasunaga H. Introduction to Applied Statistics—Chapter 1 Propensity Score Analysis. Annals of Clinical Epidemiology. 2020;2(2):33–37
  88. Yonezawa N, Jo T, Matsui H, Fushimi K, Yasunaga H. Effect of Early Tracheostomy on Mortality of Mechanically Ventilated Patients With Guillain–Barré Syndrome: A Nationwide Observational Study. Neurocritical Care. 2020;33(3):759-768.

[2019]

  1. Aso S, Matsui H, Fushimi K, Yasunaga H. Systemic glucocorticoids plus cyclophosphamide for acute exacerbation of idiopathic pulmonary fibrosis: A retrospective nationwide study. Sarcoidosis Vasculitis and Diffuse Lung Disease. 2019 36 (2); 116-123
  2. Fujiogi M, Michihata N, Matsui H, Fushimi K, Yasunaga H, Fujishiro J. Outcomes following laparoscopic versus open surgery for pediatric inguinal hernia repair: analysis using a national inpatient database in Japan. Journal of Pediatric Surgery. 2019;54(3):577-581
  3. Fujiogi M, Michihata N, Matsui H, Fushimi K, Yasunaga H, Fujishiro J. Early outcomes of laparoscopic versus open surgery for urachal remnant resection in children: a retrospective analysis using a nationwide inpatient database in Japan. Journal of Laparoendoscopic & Advanced Surgical Techniques. 2019;29(8):1067-1072
  4. Fujiogi M, Goto T, Yasunaga H, Fujishiro J, Mansbach JM, Camargo CA Jr., Hasegawa K. Trends in bronchiolitis hospitalizations in the United States, 2000-2016. Pediatrics 2019;144(6):e20192614.
  5. Fujiogi M, Michihata N, Matsui H, Fushimi K, Yasunaga H, Ishimaru T, Fujishiro J. Factors affecting successful atropine therapy for infantile hypertrophic pyloric stenosis: a retrospective analysis using a nationwide database in Japan. Annals of Clinical Epidemiology. 2019;1:4-10.
  6. Goto T, Jo T, Matsui H, Fushimi K, Hayashi H, Yasunaga H. Machine learning-based prediction models for 30-day readmission after hospitalization for chronic obstructive pulmonary disease. COPD 2019;16(5-6):338-343.
  7. Hatakeyama S, Hashimoto H, Matsui H, Sasabuchi Y, Yasunaga H, Kotani K, Nagai R. Antibiotic prescription among outpatients in a prefecture of Japan, 2012–2013: A retrospective claims database study. BMJ Open. 2019;9(4):e026251
  8. Hiraishi Y, Jo T, Michihata N, Hasegawa W, Sakamoto Y, Urushiyama H, Matusi H, Fushimi K, Nagase T, Yasunaga H, Yamauchi Y. Hospital volume and mortality following diagnostic bronchoscopy in lung cancer patients: Data from a national inpatient database in Japan. Respiration. 2019;97(3):264-272
  9. Hoshina K, Ishimaru S, Sasabuchi Y, Yasunaga H, Komori K; Japan Committee for Stentgraft Management (JACSM). Outcomes of Endovascular Repair for Abdominal Aortic Aneurysms: A Nationwide Survey in Japan. Ann Surg. 2019;269(3):564-573.
  10. Ikawa F, Hidaka T, Yoshiyama M, Ohba H, Matsuda S, Ozono I, Iihara K, Kinouchi H, Nozaki K, Kato Y, Morita A, Michihata N, Yasunaga H, Kurisu K. Characteristics of Cerebral Aneurysms in Japan. Neurol Med Chir. 2019;59(11):399-406.
  11. Ishimaru M, Ono S, Matsui H, Yasunaga H. Association between perioperative oral care and postoperative pneumonia after cancer resection: Conventional versus high-dimensional propensity score matching analysis. Clinical Oral Investigations. 2019 ;23(9):3581-3588
  12. Ishimaru M, Ono S, Matsui H, Yasunaga H. Domiciliary dental care among homebound older adults: a nested case-control study in Japan. Geriatrics & Gerontology International. 2019;19(7):679-683
  13. Ishimaru T, Fujiogi M, Michihata N, Matsui H, Fushimi K, Kawashima H, Fujishiro J, Yasunaga H. Impact of congenital heart disease on outcomes after primary repair of esophageal atresia: a retrospective observational study using a nationwide database in Japan. Pediatric Surgery International 2019 ;35(10):1077-1083.
  14. Isogai T, Matsui H, Tanaka H, Fushimi K, Yasunaga H. In-hospital Takotsubo syndrome versus in-hospital acute myocardial infarction among patients admitted for non-cardiac diseases: a nationwide inpatient database study. Heart and Vessels. 2019;34(9):1479-1490
  15. Jo T, Michihata N, Yamana H, Sasabuchi Y, Matsui H, Urushiyama H, Mitani A, Yamauchi Y, Fushimi K, Nagase T, Yasunaga H. Reduction in exacerbation of COPD in patients of advanced age using the Japanese Kampo medicine Dai-kenchu-to: a retrospective cohort study. International Journal of Chronic Obstructive Pulmonary Disease. 2019:14 129–139
  16. Kawamura I, Nakajima M, Kitamura T, Kaszynski RH, Hojo R, Ohbe H, Sasabuchi Y, Matsui H, Fushimi K, Fukamizu S, Yasunaga H. Patient Characteristics and In-hospital Complications of Subcutaneous Implantable Cardioverter Defibrillator for Brugada Syndrome in Japan. Journal of Arrhythmia 2019;35(6):842-847
  17. Kinoshita T, Ohbe H, Matsui H, Fushimi K, Ogura H, Yasunaga H. Effect of tranexamic acid on mortality in patients with haemoptysis: a nationwide study. Crit Care 2019;23:347.
  18. Koizumi M, Ishimaru M, Matsui H, Fushimi K, Yamasoba T, Yasunaga H. Tranexamic acid and post-tonsillectomy hemorrhage: propensity score and instrumental variable analyses. European Archives of Oto-Rhino-Laryngology. 2019;276(1):249-254
  19. Koizumi M, Ishimaru M, Matsui H, Fushimi K, Yamasoba T, Yasunaga H. Outcomes of endoscopic sinus surgery for sinusitis-induced intracranial abscess in patients undergoing neurosurgery. Neurosurgical Focus 2019;47(2):E12.
  20. Kondo Y, Matsui H, Yasunaga H. Characteristics, treatments, and outcomes among patients with abdominal aortic injury in Japan: A nationwide cohort study. World Journal of Emergency Surgery 2019;14:43.
  21. Kumamaru KK, Kumamaru H, Yasunaga H, Matsui H, Omiya T, Hori M, Suzuki M, Wada A, Kamagata K, Takamura T, Irie R, Nakanishi A, Aoki S. Large Hospital Variation in the Utilization of Post-procedural CT to Detect Pulmonary Embolism/Deep Vein Thrombosis in Patients Undergoing Total Knee or Hip Replacement Surgery: Japanese Nationwide Diagnosis Procedure Combination Database Study. British J Radiol. 2019;92(1097):20180825.
  22. Kumazawa R, Jo T, Matsui H, Fushimi K, Yasunaga H. Association between angiotensin-converting enzyme inhibitors and post-stroke aspiration pneumonia. Journal of Stroke and Cerebrovascular Diseases 2019;28(12):104444.
  23. Matsui H, Koike S, Fushimi K, Wada T, Yasunaga H. Effect of neurologic specialist staffing on 30-day in-hospital mortality after cerebral infarction. Annals of Clinical Epidemiology 2019;1(3):86-94
  24. Michihata N, Shigemi D, Sasabuchi Y, Matsui H, Jo T, Yasunaga H. Safety and effectiveness of Japanese herbal Kampo medicines for treatment of hyperemesis gravidarum. International Journal of Gynecology & Obstetrics. 2019;145(2):182-186.
  25. Minami T, Yamana H, Shigemi D, Matsui H, Fushimi K, Yasunaga H. Artificial colloids versus human albumin for treatment of ovarian hyperstimulation syndrome: a retrospective cohort study. International Journal of Reproductive BioMedicine 2019; 17: 709–716.
  26. Miyamoto Y, Iwagami M, Aso S, Yasunaga H, Matsui H, Fushimi K, Hamasaki Y, Nangaku M, Doi K. Association between intravenous contrast media exposure and non-recovery from dialysis-requiring septic acute kidney injury: a nationwide observational study. Intensive Care Medicine 2019;45(11):1570-1579.
  27. Morita K, Matsui H, Michihata N, Fushimi K, Yasunaga H. Association of Early Systemic Corticosteroid Therapy with Mortality in Patients with Stevens–Johnson Syndrome or Toxic Epidermal Necrosis: A Retrospective Cohort Study Using a Nationwide Claims Database. American Journal of Clinical Dermatology. 2019;20(4):579-592.
  28. Mouri H, Jo T, Michihata N, Matsui H, Fushimi K, Yasunaga H. Continuous Neuromuscular Blockade and Mortality in Patients with Exacerbation of Idiopathic Interstitial Pneumonias: A Propensity-matched Analysis. Respiratory Care. 2019;64(1):34-39.
  29. Nakajima M, Aso S, Yasunaga H, Shirokawa M, Nakano T, Goto H, Yamaguchi Y. Body temperature change and outcomes in patients undergoing long-distance air medical transport. Am J Emerg Med. 2019;37(1):89-93.
  30. Nakajima M, Aso S, Matsui H, Fushimi K, Yasunaga H. Disaster-related carbon monoxide poisoning after the Great East Japan Earthquake, 2011: a nationwide observational study. Acute Medicine & Surgery 2019;6(3):294-300
  31. Nakajima M, Kojiro M, Aso S, Matsui H, Fushimi K, Kaita Y, Goto H, Yamaguchi Y, Yasunaga H. Effect of high-dose vitamin C therapy on severe burn patients: A nationwide retrospective cohort study. Crit Care 2019;23(1):407
  32. Ohbe H, Jo T, Matsui H, Fushimi K, Yasunaga H. Early enteral nutrition in patients undergoing sustained neuromuscular blockade: a propensity-matched analysis using a nationwide inpatient database. Critical Care Medicine. 2019;47(8):1072-1080
  33. Ohbe H, Jo T, Matsui H, Fushimi K, Yasunaga H. Treatment with antithrombin or thrombomodulin and mortality from heatstroke-induced disseminated intravascular coagulation: a nationwide observational study. Seminars in Thrombosis and Hemostasis 2019;45(8):760-766.
  34. Ohbe H, Jo T, Matsui H, Fushimi K, Yasunaga H. Intravenous albumin for initial resuscitation and mortality in septic shock patients: propensity score analyses using a nationwide inpatient database. Annals of Clinical Epidemiology 2019;1:45–55
  35. Ohbe H, Jo T, Matsui H, Fushimi K, Yasunaga H. Extracorporeal membrane oxygenation improves outcomes of accidental hypothermia without vital signs: a nationwide observational study. Resuscitation 2019;144:27-32.
  36. Oichi T, Oshima Y, Matsui H, Fushimi K, Tanaka S, Yasunaga H. Can elective spine surgery be performed safely among nonagenarians? Analysis of a national inpatient database in Japan. Spine. 2019;44(5):E273-E281
  37. Okubo Y, Miyairi I, Michihata N, Morisaki N, Kinoshita N, Urayama KY, Yasunaga H. Recent prescription patterns for children with acute infectious diarrhea. Journal of Pediatric Gastroenterology & Nutrition. 2019;68(1):13-16.
  38. Okubo Y, Hayakawa I, Nariai H, Michihata N, Matsui H, Fushimi K, Yasunaga H. Recent practice patterns in diagnostic procedures anticonvulsants, and antibiotics for children hospitalized with febrile seizure. Seizure: European Journal of Epilepsy. 2019; 67:52–56
  39. Ota K, Sasabuchi Y, Matsui H, Jo T, Fushimi K, Yasunaga H. Age distribution and seasonality in acute eosinophilic pneumonia: analysis using a national inpatient database. BMC Pulmonary Medicine. BMC Pulmonary Medicine 2019;19:38
  40. Sadamatsu Y, Hiratsuka Y, Michihata N, Jo T, Matsui H, Murakami A, Fushimi K, Yasunaga H. Activity of daily living improvement after cataract surgery for patients in nursing care facilities. Annals of Clinical Epidemiology 2019;1(3):80-85
  41. Sekimizu M, Ogura K, Yasunaga H, Matsui H, Tanaka S, Inagaki K, Kawai A. Development of nomograms for prognostication of patients with primary soft tissue sarcomas of the trunk and extremity: report from the Bone and Soft Tissue Tumor Registry in Japan. BMC Cancer 2019;19:657
  42. Shigemi D, Yasunaga H. Antenatal corticosteroid administration in women undergoing tocolytic treatment who delivered before 34 weeks of gestation: a retrospective cohort study using a national inpatient database. BMC Pregnancy and Childbirth. 2019;19(1):17
  43. Shigemi D, Yamaguchi S, Aso S, Yasunaga H. Predictive model for macrosomia using maternal parameters without sonography information. Journal of Maternal-Fetal and Neonatal Medicine. 2019;32(22):3859-3863
  44. Shigemi D, Aso S, Matsui H, Fushimi K, Yasunaga H. Safety of laparoscopic surgery for benign diseases during pregnancy: a nationwide retrospective cohort study. Journal of Minimally Invasive Gynecology. 2019;26(3):501-506
  45. Shigemi D, Matsui H, Fushimi K, Yasunaga H. Therapeutic impact of initial treatment for Chlamydia trachomatis among patients with pelvic inflammatory disease: a retrospective cohort study using a national inpatient database in Japan. Clinical Infectious Diseases. 2019;69(2):316-322
  46. Shigemi D, Matsui H, Fushimi K, Yasunaga H. Laparoscopic Compared With Open Surgery for Severe Pelvic Inflammatory Disease and Tubo-Ovarian Abscess. Obstetrics & Gynecology 2019;133(6):1224-1230
  47. Shigemi D, Aso S, Yasunaga H. Inappropriate use of ritodrine hydrochloride for threatened preterm birth in Japan: a retrospective cohort study using a national inpatient database. BMC Pregnancy and Childbirth 2019;19(1):204
  48. Shigemi D, Matsui H, Fushimi K, Yasunaga H. Recent overview of patients with anti-N-methyl-D-aspartate receptor encephalitis using a national inpatient database in Japan. Annals of Clinical Epidemiology. 2019;1:11-17.
  49. Shinkawa H, Yasunaga H, Hasegawa K, Matsui H, Michihata N, Fushimi K, Kokudo N. Mortality and morbidity after pancreatoduodenectomy in patients undergoing hemodialysis: analysis using a national inpatient database. Surgery. 2019;165(4):747-750
  50. Sugihara T, Yasunaga H, Matsui H, Kamei J, Fujimura T, Kume H. Regional clinical practice variation in Urology: Usage Example of the Open Data of National Database of Health Insurance Claims and Specific Health Checkups of Japan. Int J Urol Int J Urol. 2019;26(2):303-305.
  51. Suzuki J, Sasabuchi Y, Hatakeyama S, Matsui H, Sasahara T, Morisawa Y, Yamada T, Yasunaga H. Azithromycin plus β-lactam versus levofloxacin plus β-lactam for severe community-acquired pneumonia: a retrospective nationwide database analysis. Journal of Infection and Chemotherapy 2019;25(12):1012-1018.
  52. Tagami T, Matsui H, Ong M, Kuno M, Kaneko J, Tanaka C, Unemoto K, Fushimi K, Yasunaga H. Haptoglobin use and acute kidney injury requiring renal replacement therapy among patients with severe burn injury: a nationwide database study. Annals of Clinical Epidemiology 2019;1:69–75
  53. Takano A, Ono S, Yamana H, Matsui H, Matsumoto T, Yasunaga H, Kawakami N. Factors associated with the long-term prescription of benzodiazepines: a retrospective cohort study using a health insurance database in Japan. BMJ Open 2019;9:e029641.
  54. Takeshima T, Jo T, Yasunaga H, Morita K, Yamauchi Y, Hasegawa W, Sakamoto Y, Urushiyama H, Matsui H, Fushimi K, Nagase T. Factors Associated with Severe Postoperative Acute Respiratory Failure Requiring High Dose Corticosteroid Therapy. Annals of Clinical Epidemiology 2019;1:31–44
  55. Tsuchiya A, Yasunaga H, Tsutsumi Y, Kawahara T, Matsui H, Fushimi K. Nationwide observational study of mortality from complicated intra-abdominal infections and the role of bacterial cultures. Br J Surg. 2019;106(5):606-615.
  56. Uda K, Matsui H, Fushimi K, Yasunaga H. Intensive in-hospital rehabilitation after hip fracture surgery and activities of daily living in patients with dementia: Retrospective analysis of a nationwide inpatient database. Archives of Physical Medicine and Rehabilitation 2019;100:2301-2307
  57. Usui T, Hanafusa N, Yasunaga H, Nangaku M. Association of dialysis with in-hospital disability progression and mortality in community-onset stroke. Nephrology (Carlton). 2019;24(7):737-743
  58. Winburn I, Ishii T, Sumikawa T, Togo K, Yasunaga H. Estimating the Prevalence of Transthyretin Amyloid Cardiomyopathy in a Large In-Hospital Database in Japan. Cardiol Ther 2019;8(2):297-316
  59. Yasunaga H. How to review manuscripts. Annals of Clinical Epidemiology. 2019;1:2-3
  60. Yasunaga H. Real World Data in Japan: Chapter I NDB. Annals of Clinical Epidemiology 2019;1(2):28-30.
  61. Yasunaga H. Real World Data in Japan: Chapter II The Diagnosis Procedure Combination Database. Annals of Clinical Epidemiology 2019;1(3):76-79.

[2018]

  1. Abe H, Sumitani M, Uchida K, Ikeda T, Matusi H, Fushimi K, Yasunaga H, Yamada Y. Association between mode of anaesthesia and severe maternal morbidity during scheduled caesarean delivery: a nationwide population-based study in Japan. British Journal of Anaesthesia 2018;120(4):779–789.
  2. Aso S, Matsui H, Fushimi K, Yasunaga H. Effect of cyclosporine A on mortality after acute exacerbation of idiopathic pulmonary fibrosis. Journal of Thoracic Disease 2018;10(9):5275-5282
  3. Fujiogi M, Michihata N, Matsui H, Fushimi K, Yasunaga H, Fujishiro J. Clinical features and practice patterns of gastroschisis: a retrospective analysis using a Japanese national inpatient database. Pediatric Surgery International 2018;34:727–733
  4. Fujiogi M, Michihata N, Matsui H, Fushimi K, Yasunaga H, Fujishiro J. Postoperative small bowel obstruction following laparoscopic or open fundoplication in children: a retrospective analysis using a nationwide database. World Journal of Surgery 2018 ;42(12):4112-4117.
  5. Funakoshi H, Matsui H, Fushimi K, Yasunaga H. Variation in patient backgrounds, practice patterns, and outcomes of high-risk pulmonary embolism in Japan: A retrospective cohort study. International Heart Journal 2018;59(2):367-371
  6. Hiyama N, Sasabuchi Y, Jo T, Hirata T, Osuga Y, Nakajima J, Yasunaga H. The Third Peaks in Age Distribution of Females with Pneumothorax: A Nationwide Database Study in Japan. European Journal of Cardio-Thoracic Surgery. 2018;54(3):572-578
  7. Igarashi A, Yamamoto-Mitani N, Morita K, Matsui H, Lai CKY, Yasunaga H. Classification of long-term care wards and their functional characteristics: Analysis of national hospital data in Japan. BMC Health Services Research 2018;18(1):65
  8. Ishimaru M, Matsui H, Ono S, Hagiwara Y, Morita K, Yasunagah H. Preoperative oral care and effect on postoperative complications after major cancer surgery. British Journal of Surgery 2018;105(12):1688-1696
  9. Isogai T, Matsui H, Tanaka H, Kohyama A, Fushimi K, Yasunaga H. Clinical features and peripartum outcomes in pregnant women with cardiac disease: a nationwide retrospective cohort study in Japan. Heart and Vessel 2018;33(8):918-930
  10. Itoh S, Hikichi H, Murayama H, Ishimaru M, Ogata Y, Yasunaga H. Association between advanced care management and progression of care need level in long-term care recipients: a retrospective cohort study. JMIR Aging 2018;1(2):e11117
  11. Iwagami M, Moriya H, Doi K, Yasunaga H, Isshiki R, Sato I, Mochida Y, Ishioka K, Ohtake T, Hidaka S, Noiri E, Kobayashi S. Seasonality of acute kidney injury incidence and mortality among hospitalized patients. Nephrology Dialysis Transplantation 2018;33(8):1354-1362
  12. Jo T, Yasunaga H, Michihata N, Sasabuchi Y, Hasegawa W, Takeshima H, Sakamoto Y, Matsui H, Fushimi K, Nagase T, Yamauchi Y. Influence of Parkinsonism on outcomes of elderly pneumonia patients. Parkinsonism and Related Disorders 2018;54:25-29.
  13. Kawata M, Sasabuchi Y, Taketomi S, Inui H, Matsui H, Fushimi K, Chikuda H, Yasunaga H, Tanaka S. Annual trends in arthroscopic meniscus surgery: analysis of a national database in Japan. PlosONE 2018;13(4):e0194854.
  14. Kawata M, Sasabuchi Y, Taketomi S, Inui H, Matsui H, Fushimi K, Yasunaga H, Tanaka S.  Atopic dermatitis is a novel demographic risk factor for surgical site infection after anterior cruciate ligament reconstruction. Knee Surgery, Sports Traumatology, Arthroscopy 2018 ;26(12):3699-3705.
  15. Kikuchi H, Hamanaga C, Yasunaga H, Matsui H, Hashimoto H. Privacy-preserving multiple linear regression of vertically partitioned real medical datasets. Journal of Information Processing 2018;26:638-647
  16. Kinoshita Y, Sugihara T, Yasuanga H, Matsui H, Ishikawa A, Fujimura T, Fukuhara H, Ishibashi Y, Fushimi K, Homma Y. Hospital-volume effects on perioperative outcomes in peritoneal dialysis catheter implantation: analysis of 2505 cases. Perit Dial Int 2018;38(6):419-423
  17. Kishimoton M, Yamana H, Inoue S, Noda T, Akahane M, Inagaki Y, Matsui H, Yasunaga H, Kawaguchi M, Imamura T. Suspected periprosthetic joint infection after total knee arthroplasty under propofol versus sevoflurane anesthesia: a retrospective cohort study. Canadian J Anesthesia 2018;65(8):893-900
  18. Koike S, Matsumoto M, Kawaguchi H, Ide H, Atarashi H, Kotani K, Yasunaga H. Board certification and urban-rural migration of physicians in Japan. BMC Health Services Research 2018;18:615
  19. Koizumi C, Michihata N, Matsui H, Fushimi K, Yasunaga H. In-Hospital Mortality for Hepatic Portal Venous Gas: Analysis of 1590 Patients Using a Japanese National Inpatient Database. World Journal of Surgery 2018;42(3):816-822
  20. Maeda T, Michihata N, Sasabuchi Y, Matsui H, Ohnishi Y, Miyata S, MD, Yasunaga H. Safety of tranexamic acid during pediatric trauma: a nationwide database study. Pediatric Critical Care Medicine 2018;19(12):e637-e642
  21. Mitani A, Jo T, Yasunaga H, Sakamoto Y, Hasegawa W, Urushiyama H, Yamauchi Y, Matsui H, Fushimi K, Nagase T. Venous thromboembolic events in patients with lung cancer treated with cisplatin-based versus carboplatin/nedaplatin-based chemotherapy. Anticancer Drugs. 2018;29(6):560-564..
  22. Morita K, Ono S, Ishimaru M, Matsui H, Naruse T, Yasunaga H. Factors affecting discharge to home among geriatric intermediate care facility residents in Japan. Journal of the American Geriatrics Society 2018 ;66(4):728-734.
  23. Nagata N, Yasunaga H, Matsui H, Fushimi K, Watanabe K, Akiyama J, Uemura N, Niikura R. Therapeutic endoscopy-related GI bleeding and thromboembolic events in patients using warfarin or direct oral anticoagulants: results from a large nationwide database analysis. Gut 2018;67(10):1805-1812
  24. Nakaharai K, Morita K, Jo T, Matsui H, Fushimi K, Yasunaga H. Early prophylactic antibiotics for severe acute pancreatitis: a population-based cohort study using a nationwide database in Japan. Journal of Infection and Chemotherapy 2018;24(9):753-758
  25. Nakajima M, Aso S, Matsui H, Fushimi K, Yasunaga H. Clinical Features and Outcomes of Tetanus: Analysis Using a National Inpatient Database in Japan. Journal of Critical Care 2018;44:388-391
  26. Obinata D, Sugihara T, Yasunaga H, Mochida J, Yamaguchi K, Murata Y, Yoshizawa T, Matsui T, Matsui H, Sasabuchi Y, Fujimura T, Homma Y, Takahashi S. Tension-free vaginal mesh surgery versus laparoscopic sacrocolpopexy for pelvic organ prolapse: Analysis of perioperative outcomes using a Japanese national inpatient database. Int J Urol 2018;25(7):655-659.
  27. Ohbe H, Jo T, Matsui H, Fushimi K, Yasunaga H. Cholinergic crisis caused by cholinesterase inhibitors: a retrospective nationwide database study. Journal of Medical Toxicology 2018;14(3):237-241
  28. Ohbe H, Jo T, Yamana H, Matsui H, Fushimi K, Yasunaga H. Early enteral nutrition for cardiogenic or obstructive shock requiring venoarterial extracorporeal membrane oxygenation: a nationwide inpatient database study. Intensive Care Medicine 2018;44:1258-1265
  29. Oichi T, Oshima Y, Chikuda H, Ohya J, Matsui H, Fushimi K, Tanaka S, Yasunaga H. In-hospital complication rate following microendoscopic versus open lumbar laminectomy: a propensity score matched analysis. Spine J 2018;18(10):1815-1821
  30. Okinaga H, Yasunaga H, Hasegawa K, Fushimi K, Kokudo N. Short-Term Outcomes following Hepatectomy in Elderly Patients with Hepatocellular Carcinoma: An Analysis of 10,805 Septuagenarians and 2,381 Octo- and Nonagenarians in Japan. Liver Cancer Liver Cancer 2018;7:55–64
  31. Okubo Y, Morisaki N, Michihata N, Matsui H, Fushimi K, Yasunaga H. Dose–response relationship between weight status and clinical outcomes among infants hospitalized with respiratory syncytial infections. Pediatric Pulmonology 2018;53(4):461-466
  32. Okubo Y, Michihata N, Uda K, Miyairi I, Morisaki N, Ogawa Y, Matsui K, Fushimi K, Yasunaga H. Recent trends in practice patterns and effect of corticosteroid in pediatric Mycoplasma pneumoniae-related respiratory infections. Respiratory Investigation  2018;56(2):158-165
  33. Okubo Y, Michihata N, Uda K, Morisaki N, Miyairi I, Matsui H, Fushimi K, Yasunaga H. Dose–response relationship between weight status and clinical outcomes in pediatric influenza-related respiratory infections. Pediatric Pulmonology 2018; 53(2):218-223
  34. Okubo Y, Michihata N, Morisaki N, Hangai M, Matsui H, Fushimi K, Yasunaga H. Recent trends in practice patterns and comparisons between immunoglobulin and corticosteroid in pediatric immune thrombocytopenia. Int J Hematol 2018;107(1):75-82
  35. Okubo Y, Michihata N, Morisaki N, Sundel RP, Matsui H, Fushimi K, Yasunaga H. Association between dose of glucocorticoids and coronary artery lesions in Kawasaki disease. Arthritis Care & Research 2018;70(7):1052-1057.
  36. Ono S, Ono Y, Michihata N, Sasabuchi Y, Yasunaga H. Effect of Pokémon GO on Incidence of Fatal Traffic Injuries: A Population-Based Quasi-Experimental Study Using the National Traffic Accidents Database in Japan. Injury Prevention 2018;24(6):448-450
  37. Sakamoto H, Rahman MM, Nomura S, Okamoto E, Koike S, Yasunaga H, Kawakami N, Hashimoto H, Kondo N, Abe SK, Palmer M, Ghaznavi C, Shibuya K, Gilmour S, Tatara K. Japan Health System Review. Vol. 8 No. 1. New Delhi: World Health Organization, Regional Office for South-East Asia, 2018.
  38. Sasabuchi Y, Matsui H, Lefor AK, Jo T, Michihata N, Fushimi K, Yasunaga H. Japanese herbal kampo Hochuekkito or Juzentaihoto after surgery for hip fracture does not reduce infectious complications. eCAM 2018, Article ID 8620198, 6 pages
  39. Sasabuchi Y, Matsui H, Kotani K, Lefor AK, Yasunaga H. Effect of the 2016 Kumamoto earthquakes on preventable hospital admissions: A retrospective cohort study in Japan. BMJ Open 2018;8:e021294.
  40. Sasabuchi Y, Matsui H, Lefor AK, Fushimi K, Yasunaga H. Timing of surgery for hip fractures in the elderly: A retrospective cohort study. Injury 2018;49(10):1848-1854.
  41. Sawada Y, Sasabuchi Y, Nakahara Y, Matsui H, Fushimi K, Haga N, Yasunaga H. Early Rehabilitation and In-Hospital Mortality in Community-Acquired Pneumonia Patients Admitted to an Intensive Care Unit: Propensity-Matched Analysis. American Journal of Critical Care 2018;27(2):97-103
  42. Shinkawa H, Yasunaga H, Hasegawa K, Matsui H, Fushimi K, Michihata N, Kokudo N. Mortality and morbidity after hepatic resection in patients undergoing hemodialysis: analysis of a national inpatient database in Japan. Surgery 2018;163(6):1234-1237
  43. Sugihara T, Yasunaga H, Matsui H, Ishikawa A, Fujimura T, Fukuhara H, Fushimi K, Homma Y, Kume H. A skill degradation in laparoscopic surgery after a long absence: assessment based on nephrectomy case. Mini-invasive surgery 2018;2:11
  44. Suzuki S, Yasunaga H, Matsui H, Fushimi K, Ando M, Yamasoba T. Postoperative mechanical bowel obstruction after pharyngolaryngectomy for hypopharyngeal cancer: a retrospective analysis using a Japanese inpatient database. Head & Neck 2018;40(7):1548-1554
  45. Suzuki S, Yasunaga H, Matsui H, Fushimi K, Yamasoba T. Trends in otolaryngological surgeries in an era of super-aging: descriptive statistics using a Japanese inpatient database. Auris Nasus Larynx 2018;45(6):1239-1244
  46. Tadokoro F, Morita K, Michihata N, Fushimi K, Yasunaga H. Association between sugammadex and anaphylaxis in pediatric patients: a nested case–control study using a national inpatient database. Pediatric Anesthesia 2018;28(7):654-659
  47. Taniguchi Y, Oichi T, Ohya J, Chikuda H, Oshima Y, Matsubayashi Y, Matsui H, Fushimi K, Tanaka S, Yasunaga H. In-hospital mortality and morbidity of pediatric scoliosis surgery in Japan: analysis using a national inpatient database. Medicine 2018;97(14):e0277.
  48. Tsuchiya A, Yasunaga H, Tsutsumi Y, Matsui H, Fushimi K. Mortality and Morbidity after Hartmann’s Procedure vs. Primary Anastomosis without a Diverting Stoma for Colorectal Perforation: A Nationwide Observational Study. World Journal of Surgery 2018;42(3):866-875
  49. Tsuchiya A, Yamana H, Kawahara T, Tsutsumi Y, Matsui H, Fushimi K, Yasunaga H. Tracheostomy and Mortality in Patients with Severe Burns: A Nationwide Observational Study. Burns 2018 ;44(8):1954-1961.
  50. Uda K, Okubo Y, Shoji K, Miyairi I, Morisaki N, Michihata N, Matsui M, Fushimi K, Yasunaga H, Trends of neuraminidase inhibitors use in children with influenza related respiratory infections. Pediatric Pulmonology 2018;53(6):802-808
  51. Urushiyama H, Jo T, Yasunaga H, Michihata N, Matsui H, Hasegawa W, Takeshima H, Sakamoto Y, Hiraishi Y, Mitani A, Fushimi K, Nagase T, Yamauchi Y. Oral fluorouracil versus vinorelbine plus cisplatin as adjuvant chemotherapy for stage II–IIIA non-small cell lung cancer: propensity score-matched and instrumental variable analyses. Cancer Medicine 2018;7(10): 4863-4869
  52. Urushiyama H, Jo T, Yasunaga H, Michihata N, Yamana H, Matsui H, Hasegawa W, Hiraishi Y, Mitani A, Fushimi K, Nagase T, Yamauchi Y. Effect of Hangeshashin-To (Japanese Herbal Medicine Tj-14) on Tolerability of Irinotecan: Propensity Score and Instrumental Variable Analyses. Journal of Clinical Medicine 2018;7:246.
  53. Wada T, Yasunaga H, Doi K, Matsui H, Fushimi K, Kitsuta Y, Nakajima S. Impact of Hospital Volume on Mortality in Patients with Severe Torso Injury. Journal of Surgical Rresearch 2018;222:1-9.
  54. Wada T, Yasunaga H, Yamana H, Matsui H, Matsubara T, Fushimi K, Nakajima S. Development and validation of an ICD-10-Based Disability Predictive Index for Patients Admitted to Hospitals with Trauma. Injury 2018;49(3):556-563
  55. Yagi M, Yasunaga H, Matsui H, Fushimi K, Fujimoto M, Koyama T, Fujitani J. Association between Early Rehabilitation and Mobility Status in Elderly inpatients with Heart Failure: A Nationwide Retrospective Cohort Study. Progress in Rehabilitation Medicine 2018;3:20180017
  56. Yamana H, Kodan M, Ono S, Morita K, Matsui H, Fushimi K, Imamura T, Yasunaga H. Hospital quality reporting and improvement in quality of care for patients with acute myocardial infarction. BMC Health Services Research 2018;18:523

[2017]

  1. Aso S, Matsui H, Fushimi K, Yasunaga H. Resuscitative endovascular balloon occlusion of the aorta or resuscitative thoracotomy with aortic clamping for non-compressible torso hemorrhage: a retrospective nationwide study. Journal of Trauma and Acute Care Surgery 2017;82(5) :910–914
  2. Hasegawa W, Yamauchi Y, Yasunaga H, Takeshima H, Sakamoto Y, Jo T, Sasabuchi Y, Matsui H, Fushimi K, Nagase T. Prognostic nomogram for inpatients with asthma exacerbation. BMC Pulmonary Medicine 2017;17:108
  3. Ishimaru M, Ono S, Suzuki S, Matsui H, Fushimi K, Yasunaga H. Artificial nutrition dependence after cetuximab vs. cisplatin combined with radiotherapy for advanced head and neck cancer: A propensity score matched analysis. Head & Neck 2017;39(2):320-325
  4. Isogai T, Matsui H, Tanaka H, Fushimi K, Yasunaga H. Factors affecting in-hospital mortality and likelihood of undergoing surgical resection in patients with primary cardiac tumors. Journal of Cardiology 2017;69(1):287-292.
  5. Isogai T, Matsui H, Tanaka H, Fushimi K, Yasunaga H. Treatments and in-hospital mortality in acute myocardial infarction patients with rheumatoid arthritis: a nationwide retrospective cohort study in Japan. Clinical Rheumatology 2017;36(5):995-1004
  6. Isogai T, Matsui H, Tanaka H, Fushimi K, Yasunaga H. In-hospital management and outcomes in patients with peripartum cardiomyopathy: a descriptive study using a national inpatient database in Japan. Heart and Vessels 2017;32(8):944-951
  7. Isogai T, Matsui H, Tanaka H, Fushimi K, Yasunaga H. Seasonal variation in patient characteristics and in-hospital outcomes of Takotsubo syndrome: a nationwide retrospective cohort study in Japan. Heart and Vessels 2017;32:1271–1276
  8. Isogai T, Matsui H, Tanaka H, Fushimi K, Yasunaga H. Clinical characteristics of patients with Takotsubo syndrome diagnosed without coronary artery evaluation: A retrospective nationwide study. Journal of Cardiology 2017 ;71(3):268-276.
  9. Iwagami M, Yasunaga H, Matsui H, Horiguchi H, Fushimi K, Noiri E, Nangaku M, Doi K. Impact of end-stage renal disease on hospital outcomes among patients admitted to intensive care units: A retrospective matched-pair cohort study. Nephrology 2017;22(8):617-623.
  10. Jo T, Yasunaga H, Sasabuchi Y, Michihata N, Morita K, Yamauchi Y, Hasegawa W, Takeshima H, Sakamoto Y, Matsui H, Fushimi K, Nagase T. Association between dementia and discharge status in patients hospitalized with pneumonia. BMC Pulmonary Medicine 2017;17(1):128
  11. Kawata M, Sasabuchi Y, Inui H, Taketomi S, Matsui H, Fushimi K, Chikuda H, Yasunaga H, Tanaka T. Annual trends in knee arthroplasty and tibial osteotomy: Analysis of a national database in Japan. Knee 2017;24(5):1198-1205
  12. Kikuchi H, Hamanaga C, Yasunaga H, Matsui H, Hashimoto H. Privacy-preserving multiple linear regression of vertically partitioned real medical datasets. Advanced Information Networking and Applications (AINA), 2017 IEEE 31st International Conference
  13. Kishimoto M,Yamana H, Inoue H, Noda T,Myojin T, Matsui H, Yasunaga H, Kawaguchi M, Imamura T. Sivelestat sodium and mortality in pneumonia patients requiring mechanical ventilation: propensity score analysis of a Japanese nationwide database. Journal of Anesthesia 2017;31(3):405-412
  14. Koike S, Matsumoto M, Ide H, Kawaguchi H, Shimpo M, Yasunaga H. Internal medicine board certification and career pathways in Japan. BMC Med Educ. 2017;17(1):83.
  15. Maeda T, Sasabuchi Y, Matsui H, Ohnishi Y, Miyata S, Yasunaga H. Safety of tranexamic use during pediatric cardiac surgery: a nationwide database study. Journal of Cardiothoracic and Vascular Anesthesia 2017;31(2):549-553
  16. Matsui H, Jo T, Fushimi K, Yasunaga H. Outcomes after early and delayed rehabilitation for exacerbation of chronic obstructive pulmonary disease: a nationwide retrospective cohort study in Japan. Respiratory Research 2017;21;18(1):68.
  17. Morita K, Matsui H, Fushimi K, Yasunaga H. Association between nurse staffing and in-hospital bone fractures: A retrospective cohort study. Health Services Research 2017;52(3):1005-1023
  18. Morita K, Matsui H, Fushimi K, Yasunaga H. Association between advanced practice nursing and 30-day mortality in mechanically ventilated critically ill patients: a retrospective cohort study. Journal of Critical Care 2017;41:209-215
  19. Nagano M, Ichinose J, Sasabuchi Y, Nakajima J, Yasunaga H. Surgery versus percutaneous transcatheter embolization for pulmonary arteriovenous malformation: Analysis of a national inpatient database in Japan. J Thorac Cardiovasc Surg. 2017;154(3):1137-43.
  20. Odagiri H, Yasunaga H, Matsui H, Matsui S, Fushimi K, Kaise M. Hospital volume and adverse events following esophageal endoscopic submucosal dissection: analysis of a national inpatient database in Japan. Endoscopy 2017;49(4):321-326
  21. Odagiri H, Yasunaga H. Complications following endoscopic submucosal dissection for gastric, esophageal, and colorectal cancer: a review of studies based on nationwide large-scale databases. Ann Transl Med. 2017;5(8):189.
  22. Ohya J, Oshima Y, Chikuda H, Oichi T, Matsui H, Fushimi K, Tanaka S, Yasunaga H. Seasonal Variations in the Risk of Reoperation for Surgical Site Infection Following Elective Spinal Fusion Surgery: A Retrospective Study Using the Japanese Diagnosis Procedure Combination Database. Spine 2017;42(14):1068-1079
  23. Oichi T, Chikuda H, PhD, Ohya J, Ohtomo R, Morita K, Matsui H, Fushimi K, Tanaka S, Yasunaga H. Mortality and morbidity after spinal surgery in patients with Parkinson’s disease: a retrospective matched-pair cohort study. Spine Journal 2017;17(4):531-537
  24. Okubo Y, Michihata N, Yoshida K, Morisaki N, Matsui H, Fushimi K, Yasunaga H. Impact of pediatric obesity on acute asthma exacerbation in Japan. Pediatr Allergy Immunol. 2017;28(8):763-767.
  25. Okubo Y, Michihata N, Morisaki N, Kinoshita N, Miyairi I, Urayama KY, Yasunaga H. Recent patterns in antibiotic use for children with group A streptococcal infections. Journal of Global Antimicrobial Resistance 2017;13;13:55-59.
  26. Ono S, Ono Y, Matsui H, Yasunaga H. Impact of clinic follow-up visits on body weight control in people with prediabetes or diabetes mellitus: Japanese nonelderly cohort study. Family Practice 2017;34(5):552-557
  27. Ono S, Ono Y, Matsui H, Yasunaga H. Enhanced Oral Care and Health Outcomes among Nursing Facility Residents: Analysis Using the National Long-term Care Database in Japan. Journal of the American Medical Directors Association 2017;18(3):277.e1-277.e5
  28. Ono Y, Ono S, Yasunaga H, Matsui H, Fushimi K, Tanaka Y. Clinical characteristics and outcomes of myxedema coma: analysis of a national inpatient database in Japan. J Epidemiol 2017;27:117-122
  29. Ono Y, Ono S, Yasunaga H, Matsui H, Fushimi K, Tanaka Y. Clinical Features and Practice Patterns of Treatment for Adrenal Crisis: A Nationwide Cross-Sectional Study in Japan. European Journal of Endocrinology 2017:176, 329–337
  30. Sakamoto Y，Yamauchi Y，Yasunaga H，Takeshima H, Hasegawa W，Jo T，Matsui H，Fushimi K, Nagase T. Guidelines-concordant empiric antimicrobial therapy and mortality in patients with severe community-acquired pneumonia requiring mechanical ventilation. Respiratory Investigation 2017;55(1):39-44
  31. Sakamoto Y，Yamauchi Y，Yasunaga H，Takeshima H, Hasegawa W，Jo T，Matsui H，Fushimi K, Nagase T. Development of a nomogram for predicting in-hospital mortality of patients with exacerbation of chronic obstructive pulmonary disease. International Journal of Chronic Obstructive Pulmonary Disease 2017;12:1605-1611.
  32. Sako A, Yasunaga H, Matsui M, Fushimi K, Hamasaki H, Katsuyama H, Tsujimoto T, Goto A, Yanai H. Hospitalization with hypoglycemia in patients without diabetes mellitus: a retrospective study using a national inpatient database in Japan, 2008-2012. Medicine 2017;96(25):e7271
  33. Sasabuchi Y, Matsui H, Yasunaga H, Fushimi K. Increase in Avoidable Hospital Admissions after the Great East Japan Earthquake. Journal of Epidemiology & Community Health 2017;71(3):248-252.
  34. Sasabuchi Y, Matsui H, Yasunaga H, Fushimi K. Epidural analgesia is infrequently used in patients with acute pancreatitis: a descriptive study. Acta Gastro-enterologica Belgica 2017;80(3)
  35. Sato M, Tateishi R, Yasunaga H, Matsui H, Fushimi K, Ikeda H, Yatomi Y, Koike K. Association between hospital volume and in-hospital mortality following radiofrequency ablation for hepatocellular carcinoma: A national survey of 36,675 patients. BJS Open 2017;1:50–54
  36. Sato M, Tateishi R, Yasunaga H, Horiguchi H, Matsui H, Yoshida H, Fushimi K, Koike K. The ADOPT-LC Score: A Novel Predictive Index of In-hospital Mortality of Cirrhotic Patients Following Surgical Procedures. Hepatology Research 2017;47(3):E35-E43.
  37. Sato M, Tateishi R, Yasunaga H, Matsui H, Horiguchi H, Fushimi K, Koike K. Mortality and hemorrhagic complications associated with radiofrequency ablation for treatment of hepatocellular carcinoma in patients on hemodialysis for end-stage renal disease: A nationwide survey. J Gastroenterol Hepatol. 2017;32(11):1873-1878.
  38. Shakya S, Matsui H, Fushimi K, Yasunaga H. In-hospital complications after implantation of cardiac implantable electronic devices: analysis of a national inpatient database in Japan. Journal of Cardiology 2017;70(5):405-410.
  39. Sugihara T, Yasunaga H, Matsui H, Nagao G, Ishikawa A, Fujimura T, Fukuhara H, Fushimi K, Ohori M, Homma Y. Accessibility to surgical robot technology and prostate-cancer patient behavior for prostatectomy. Jpn J Clin Oncol. 2017;47(7):647-651
  40. Tagami T, Matsui H, Moroe Y, Fukuda R, Shibata A, Tanaka C, Unemoto K, Fushimi K, Yasunaga H. Antithrombin use and 28-day in-hospital mortality among severe burns patients: an observational nationwide study. Annals of Intensive Care 2017;7(1):18.
  41. Tagami T, Yasunaga H, Yokota H. Antiarrhythmic drugs for out-of-hospital cardiac arrest with refractory ventricular fibrillation. Critical Care 2017;21:59.
  42. Takeuchi T, Yasunaga H, Matsui H, Fushimi K. Pediatric urolithiasis associated with acute gastroenteritis: an inpatient database study in Japan. European Journal of Pediatrics 2017;176(4):501-507
  43. Tomio J, Yamana H, Matsui H, Yamashita H, Yoshiyama T, Yasunaga H. Tuberculosis screening prior to anti-tumor necrosis factor therapy among patients with immune-mediated inflammatory diseases in Japan: a study using a large-scale health insurance claims database. International Journal of Rheumatic Diseases 2017 Nov;20(11):1674-1683
  44. Urushiyama H, Jo T, Yasunaga H, Yamauchi Y, Matsui H, Hasegawa W, Takeshima H, Hiraishi Y, Mitani A, Fushimi K, Nagase T. Adjuvant chemotherapy versus chemoradiotherapy for small cell lung cancer with lymph node metastasis: a retrospective observational study with use of a national database in Japan. BMC Cancer 2017;17(1):613
  45. Wada T, Yasunaga H, MD, Yamana H, Matsui H, Matsubara T, Fushimi K, Nakajima S. Relationship between Hospital Volume and Outcomes in Patients with Traumatic Brain Injury: A Retrospective Observational Study using a National Inpatient Database in Japan. Injury 2017;48(7):1423-1431
  46. Wada T, Yasunaga H, MD, Yamana H, Matsui H, Matsubara T, Fushimi K, Nakajima S. Development and validation of a new ICD-10–based trauma mortality prediction scoring system using a Japanese national inpatient database. Injury Prevention 2017;23(4):263-267.
  47. Yagi M, Yasunaga H, Matsui H, Fushimi K, Fujimoto M, Koyama T, Fujitani J. Impact of Rehabilitation on Outcomes in Patients with Ischemic Stroke: A Nationwide Retrospective Cohort Study in Japan. Stroke 2017;48(3):740-746
  48. Yamana H, Moriwaki M, Horiguchi H, Kodan M, Fushimi K, Yasunaga H. Validity of diagnoses, procedures, and laboratory data in Japanese administrative data. J Epidemiology 2017;27(10):476-482

[2016]

  1. Akiyama T, Saita K, Chikuda H, Horiguchi H, Fushimi K, Yasunaga H. Mortality and Morbidity following Surgery for Primary Malignant Musculoskeletal Tumors in the Pelvis and Limbs: A Retrospective Analysis Using the Japanese Diagnosis Procedure Combination Database. Journal of Cancer Therapy 2016;7:303-310
  2. Akiyama T, Saita K, Chikuda H, Horiguchi H, Fushimi K, Yasunaga H. Risk factors associated with in-hospital postchemotherapy mortality in patients with malignant musculoskeletal tumors. Journal of Cancer Therapy 2016;7:363-369
  3. Aso S, Matsui H, Fushimi K, Yasunaga H. The effect of intra-aortic balloon pumping under venoarterial extracorporeal membrane oxygenation on mortality of cardiogenic patients: an analysis using a nationwide inpatient database. Crit Care Med 2016;44(11):1974-1979.
  4. Aso S, Matsui H, Fushimi K, Yasunaga H. In-hospital mortality and successful weaning from venoarterial extracorporeal membrane oxygenation: analysis of 5,263 patients using a national inpatient database in Japan. Crit Care 2016;20(1):80
  5. Hamada T, Yasunaga H, Nakai Y, Isayama H, Matsui H, Fushimi K, Koike K. Interstitial lung disease associated with gemcitabine: A Japanese retrospective cohort study. Respirology 2016;21(2):338-43.
  6. Hamada T, Yasunaga H, Nakai Y, Isayama H, Matsui H, Fushimi K, Koike K. No Weekend Effect on Outcomes of Severe Acute Pancreatitis in Japan: Data from the Diagnosis Procedure Combination Database. J Gastroenterol 2016;51(11):1063-1072.
  7. Hamada T, Nakai Y, Isayama H, Yasunaga H, Matsui H, Takahara N, Mizuno S, Kogure H, Matsubara S, Yamamoto N, Tada M, Koike K. Progression-Free Survival as a Surrogate for Overall Survival in First-Line Chemotherapy for Advanced Pancreatic Cancer. European Journal of Cancer 2016;65:11-20.
  8. Hirashima J, Yamana H, Matsui H, Fushimi K, Yasunaga H. Effect of Intravenous Magnesium Sulfate on Mortality in Patients with Severe Acute Asthma. Respirology 2016;21(4):668-73
  9. Ishikawa H, Yasunaga H, Matsui H, Fushimi K, Kawakami N. Differences in cancer stage, treatment and in-hospital mortality between patients with and without schizophrenia: retrospective matched-pair cohort study. British Journal of Psychiatry 2016;208(3):239-44.
  10. Ishimaru M, Ono S, Suzuki S, Matsui H, Fushimi K, Yasunaga H. Risk factors for free flap failure in 2846 head and neck cancer patients: a national database study in Japan. Journal of Oral and Maxillofacial Surgery 2016;74(6):1265-70
  11. Ishimaru M, Ono S, Yasunaga H, Matsui H, Koike S. Projected future distribution of dentists in Japan. Journal of Public Health Dentistry 2016;76(3):241-8.
  12. Isogai T, Yasunaga H, Matsui H, Tanaka H, Fushimi K. Relationship between hospital volume and major cardiac complications of rotational atherectomy: A nationwide retrospective cohort study in Japan. Journal of Cardiology 2016;67(5):442-8
  13. Isogai T, Yasunaga H Matsui H, Tanaka H, Hisagi M, Fushimi K. Early β-blocker use and in-hospital mortality in patients with Takotsubo cardiomyopathy. Heart 2016;102(13):1029-35
  14. Isogai T, Matsui H,Tanaka H, Fushimi K, Yasunaga H. Atrial natriuretic peptide therapy and in-hospital mortality in acute myocardial infarction patients undergoing percutaneous coronary intervention. Int J Cardiol 2016;222:163-70.
  15. Iwagami M, Yasunaga H, Noiri E, Horiguchi H, Fushimi K, Matsubara T, Yahagi N, Nangaku M, Doi K. Potential survival benefit of polymyxin B hemoperfusion in septic shock patients on continuous renal replacement therapy: a propensity matched analysis. Blood Purification 2016;42(1):9-17
  16. Japan Global Health Working Group. Protecting human security: proposals for the G7 Ise-Shima Summit in Japan. Lancet 2016;387:2155-62
  17. Kato S, Chikuda H, Ohya J, Oichi T, Matsui H, Fushimi K, Takeshita K, Tanaka S, Yasunaga H. Risk of infectious complications associated with blood transfusion in elective spinal surgery – A propensity score matched analysis. Spine J 2016 ;16(1):55-60
  18. Koike S, Shimizu A, Matsumoto M, Ide H, Atarashi H, Yasunaga H. Career pathways of board-certified surgeons in Japan. Surgery Today 2016 ;46(6):661-7.
  19. Koike S, Matsumoto M, Ide H, Kashima S, Atarashi H, Yasunaga H. The effect of concentrating obstetrics services in fewer hospitals on patient access: a simulation. International Journal of Health Geographics 2016;15(1):4
  20. Matsumoto T, Yasunaga H, Matsui H, Fushimi K, Izawa N, Yasui T, Kadono Y, Tanaka S. Trends and Risk Factors for Perioperative Complications in Total Ankle Arthroplasty: Retrospective Analysis using a National Database in Japan. BMC Musculoskeletal Disorders 2016;17(1):450.
  21. Michihata N, Matsui H, Fushimi K, Yasunaga H. Hospital volume and mortality due to preterm patent ductus arteriosus. Pediatrics International 2016;58(11):1171-1175.
  22. Momosaki R, Yasunaga H, Matsui H, Abo M. Predictive factors for oral intake after aspiration pneumonia in older adults. Geriatrics & Gerontology International 2016;16(5):556-60
  23. Momosaki R, Yasunaga H, Matsui H, Fushimi K, Abo M. Proton Pump Inhibitors versus Histamine-2 Receptor Antagonists and Risk of Pneumonia in Patients with Acute Stroke. Journal of Stroke and Cerebrovascular Diseases 2016;25(5):1035-40
  24. Momosaki R, Yasunaga H, Kakuda W, Matsui H, Fushimi K, Abo M. Very early versus delayed rehabilitation for acute ischemic stroke patients with intravenous recombinant tissue plasminogen activator: A nationwide retrospective cohort study in Japan. Cerebrovascular Diseases 2016;42(1-2):41-8
  25. Naganuma M, Matsui H, Fushimi K, Yasunaga H. Clinical Features of Isolated Dissections of Abdominal Aortic Branches. Heart and Vessels 2016;31(6):1006-9
  26. Nakahara Y, Yasunaga H, Inokuchi H, Ogata N, Horiguchi H, Matsuda S, Fushimi K, Haga N. Mortality-reducing effect of rehabilitation for COPD: observational propensity-matched cohort study using a Nationwide Database. Respiratory Care 2016;61(11):1497-1504.
  27. Niikura R, Yasunaga H, Yamada A, Matsui H, Fushimi K, Hirata Y, Koike K. Factors associated with adverse events of therapeutic colonoscopy for colorectal neoplasia: a retrospective nationwide study in Japan. Gastrointestinal Endoscopy 2016;84(6):971-982
  28. Odagiri H, Iizuka T, Kikuchi D, Kaise M, Takeda H, Ohashi K, Yasunaga H. Gastrointestinal Endoscopy-Assisted Minimally Invasive Surgery for Superficial Cancer of the Uvula. Clinical Endoscopy 2016;49(3):289-93
  29. Ohya J, Oshima Y, Chikuda H, Oichi T, Matsui H, Fushimi K, Tanaka S, Yasunaga H. Does microendoscopic technique reduce mortality and major complications in patients undergoing lumbar discectomy? A propensity score-matched analysis using a nationwide administrative database. Neurosurgical Focus 2016;40(2):E5.
  30. Ono S, Ishimaru M, Matsui H, Fushimi K, Yasunaga H. Impact of body mass index on the outcomes of open reduction for mandibular fracture. Journal of Oral and Maxillofacial Surgery 2016;74(5):1024.e1-5.
  31. Ono S, Ono Y, Matsui H, Yasunaga H. Factors associated with hospitalization for seasonal influenza in a Japanese nonelderly cohort. BMC Public Health 2016;16:922.
  32. Ono Y, Ono S, Yasunaga H, Matsui H, Fushimi K, Tanaka Y. Factors associated with mortality of thyroid storm: analysis using a national inpatient database in Japan. Medicine 2016;95(7):e2848
  33. Sasabuchi Y, Yasunaga H, Matsui H, Lefor AK, Fushimi K. Prolonged propofol infusion for mechanically ventilated children. Anaesthesia 2016;71(4):424-8.
  34. Sasabuchi Y, Kimura N, Shiotsuka J, Komuro T, Mouri H, Ohnuma T, Asaka K, Lefor AT, Yasunaga H, Yamaguchi A, Adachi H, Sanui M.Long-term Survival in Patients with Acute Kidney Injury After Surgery for Acute Type A Aortic Dissection. Annals of Thoracic Surgery 2016;102(6):2003-2009.
  35. Sasabuchi Y, Matsui H, Lefor AK, Fushimi K, Yasunaga H. Risks and benefits of stress ulcer prophylaxis for patients with severe sepsis. Crit Care Med 2016;44(7):e464-9.
  36. Sasaki R, Yasunaga H, Matsui H, Michihata N, Fushimi K. Hospital Volume and Mortality in Mechanically Ventilated Children: Analysis of a National Inpatient Database in Japan. Pediatric Critical Care Medicine 2016;17(11):1041-1044.
  37. Suzuki S, Yasunaga H, Matsui H, Fushimi K, Yamasoba T. Pharyngocutaneous fistula and delay in free oral feeding after pharyngolaryngectomy for hypopharyngeal cancer. Head & Neck 2016;38 Suppl 1:E625-30
  38. Suzuki S, Yasunaga H, Matsui H, Fushimi K, Yamasoba T. Factors associated with prolonged duration of post-tympanoplasty local treatment in adult chronic otitis media patients: a retrospective observational study using a Japanese inpatient database. Auris Nasus Larynx 2016;43(4):377-81
  39. Suzuki S, Yasunaga H, Matsui H, Fushimi K, Yamasoba T. Factors associated with neck hematoma after thyroidectomy: a retrospective analysis using a Japanese inpatient database. Medicine 2016 ;95(7):e2812.
  40. Suzuki S, Yasunaga H, Matsui H, Fushimi K, Saito Y, Yamasoba T. Cerebral infarction after intraarterial and intravenous chemoradiotherapy for head and neck cancer: a retrospective analysis using a Japanese inpatient database. Head & Neck 2016;38(9):1354-8.
  41. Tagami T, Matsui H, Fushimi K, Yasunaga H. Prophylactic antibiotics may improve outcome in patients with severe burns requiring mechanical ventilation: propensity score analysis of a Japanese nationwide database. Clinical Infectious Diseases 2016;62(1):60-6.
  42. Tagami T, Matsui H, Fushimi K, Yasunaga H. Changes in therapeutic hypothermia and coronary intervention provision and in-hospital mortality of patients with out-of-hospital cardiac arrest: A nationwide-database study. Crital Care Medicine 2016;44(3):488-95
  43. Tagami T, Matsui H, Tanaka C, Kaneko J, Kuno M, Ishinokami S, Unemoto K, FushimiK, Yasunaga H. Amiodarone Compared with Lidocaine for Out-of-hospital Cardiac Arrest with Refractory Ventricular Fibrillation on Hospital Arrival: A Nationwide Database Study. Cardiovascular Drugs and Therapy 2016;30(5):485-491.
  44. Tagami T, Matsui H, Kuno M, Moroe Y, Kaneko J, Unemoto K, Fushimi K, Yasunaga H. Early antibiotics administration during targeted temperature management after out-of-hospital cardiac arrest: a nationwide database study. BMC Anesthesiology 2016;16(1):89.
  45. Tagami T, Matsui H, Ishinokami S, Oyanagi M, Kitahashi A, Fukuda R, Unemoto K, Fushimi K, Yasunaga H. Amiodarone or nifekalant upon hospital arrival for refractory ventricular fibrillation after out-of-hospital cardiac arrest. Resuscitation 2016;109:127-132.
  46. Tsuchiya A, Tsutsumi Y, Yasunaga H. Outcomes after Helicopter versus Ground Emergency Medical Services for Major Trauma–Propensity Score and Instrumental Variable Analyses: A retrospective nationwide cohort study. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine 2016;24(1):140.
  47. Tsuda Y, Yasunaga H, Horiguchi H, Fushimi K, Kawano H, Tanaka S. Complications and postoperative mortality rate after surgery for pathological femur fracture related to bone metastasis: Analysis of a nationwide database. Annals of Surgical Oncology 2016;23(3):801-10
  48. Wada T, Yasunaga H, Horiguchi H, Matsubara T, Fushimi K, Nakajima S, Yahagi N. Outcomes of Argatroban Treatment in Patients with Atherothrombotic Stroke: an Observational Nationwide Study in Japan. Stroke 2016 ;47(2):471-6.
  49. Wada T, Yasunaga H, Horiguchi H, Fushimi K, Matsubara T, Nakajima S, Yahagi N. Ozagrel for patients with noncardioembolic ischemic stroke: a propensity-score-matched analysis. Journal of Stroke and Cerebrovascular Diseases 2016;25(12):2828-2837
  50. Yagi M, Yasunaga H, Matsui H, Fushimi K, Fujimoto M, Koyama T, Fujitani J. Effect of Early Rehabilitation on Activities of Daily Living in Patients with Aspiration Pneumonia. Geriatrics & Gerontology International 2016;16(11):1181-1187.
  51. Yamada K, Yasunaga H, Kadono Y, Chikuda H, MD, Ogata T, Horiguchi H, Tanaka S. Postoperative outcomes of major lower extremity amputations in patients with diabetes and peripheral artery disease: Analysis using the Diagnosis Procedure Combination database in Japan. American Journal of Surgery 2016;212(3):446-50.
  52. Yamaji Y, Yasunaga H, Hirata Y, Yamada A, Yoshida S, Horiguchi H, Fushimi K, Koike K. Association Between Colorectal Cancer and Atherosclerotic Diseases: a Study Using a National Inpatient Database in Japan. Digestive Diseases and Sciences 2016;61(6):1677-85.
  53. Yamana H, Horiguchi H, Fushimi K, Yasunaga H. Comparison of procedure-based and diagnosis-based identifications of severe sepsis and disseminated intravascular coagulation in administrative data. J Epidemiol 2016;26(10):530-537.
  54. Yamana H, Matsui H, Tagami T, Hirashima J, Fushimi K, Yasunaga H. De-escalation versus continuation of empirical antimicrobial treatment in community-acquired pneumonia. J Infection 2016 ;73(4):314-25
  55. Yamauchi Y, Yasunaga H, Hasegawa W, Sakamoto Y, Takeshima H, Jo T, Matsui H, Fushimi K, Nagase T. Effect of outpatient therapy with inhaled corticosteroids on decreasing in-hospital mortality from pneumonia in patients with COPD. International Journal of Chronic Obstructive Pulmonary Disease 2016;11:1403-11.
  56. Yamauchi Y, Yasunaga H, Sakamoto Y, Hasegawa W, Takeshima H, Urushiyama H, Jo T, Matsui H, Fushimi K, Nagase T. Mortality associated with bone fractures in COPD patients. International Journal of Chronic Obstructive Pulmonary Disease 2016;11:2335-2340.

[2015]

  1. Hamada T, Yasunaga H, Nakai Y, Isayama H, Horiguchi H, Fushimi K, Koike K. Severe Bleeding after Percutaneous Transhepatic Drainage of the Biliary System: Effect of Antithrombotic Agents-Analysis of 34 606 Cases from a Japanese Nationwide Administrative Database. Radiology 2015;274(2):605-13
  2. Hamada T, Yasunaga H, Nakai Y, Isayama H, Matsui H, Horiguchi H, Fushimi K, Koike K. Bleeding After Endoscopic Sphincterotomy and Papillary Balloon Dilation Among Users of Antithrombotic Agents. Endoscopy 2015;47(11):997-1004
  3. Hasegawa W, Yamauchi Y, Yasunaga H, Sunohara M, Jo T, Matsui H, Fushimi K, Takami K, Nagase T. Clinical Features of 280 Hospitalized Patients with Lymphangioleiomyomatosis in Respirology 2015;20(1):160-5
  4. Hasegawa W, Yamauchi Y, Yasunaga H, Sunohara M, Jo T, Matsui H, Fushimi K, Takami K, Nagase T. Factors that predict in-hospital mortality in eosinophilic granulomatosis with polyangiitis. Allergy 2015;70(5):585-90.
  5. Ishitsuka K, Matsui H, Michihata N, Fushimi K, Nakamura T, Yasunaga H. Medical Procedures and Outcomes of Japanese Patients with Trisomy 18 or Trisomy 13: Analysis of a Nationwide Administrative Database of Hospitalized Patients. American Journal of Medical Genetics Part A. 2015;167(8):1816-21.
  6. Isogai T, Yasunaga H, Matsui H, Tanaka H, Horiguchi H, Fushimi K. Effectiveness of inferior vena cava filters on in-hospital mortality as an adjuvant to antithrombotic therapy for pulmonary embolism: propensity score and instrumental variable analyses. Am J Med 2015;128(3):312.e23-31.
  7. Isogai T, Yasunaga H, Matsui H, Ueda T, Tanaka H, Horiguchi H, Fushimi K. Hospital Volume and Cardiac Complications of Endomyocardial Biopsy: A Retrospective Cohort Study of 9508 Adult Patients Using a Nationwide Inpatient Database in Japan. Clinical Cardiology 2015;38(3):164-70
  8. Isogai T, Yasunaga H, Matsui H, Tanaka H, Ueda T, Horiguchi H, Fushimi K. Serious Cardiac Complications in Coronary Spasm Provocation Tests Using Acetylcholine or Ergonovine: Analysis of 21,512 Patients from the Diagnosis Procedure Combination Database in Japan. Clinical Cardiology 2015;38(3):171-7.
  9. Isogai T, Yasunaga H, Matsui H, Tanaka H, MD, Horiguchi H, Fushimi K. Effect of Intravenous Immunoglobulin on In-Hospital Mortality for Fulminant Myocarditis: Propensity Score Analyses. Journal of Cardiac Failure 2015;21(5):391-7
  10. Isogai T, Yasunaga H, Matsui H, Tanaka H, Ueda T, Horiguchi H, Fushimi K. Effect of weekend admission for acute myocardial infarction on in-hospital mortality: a retrospective cohort study. International Journal of Cardiology 2015;179:315–320.
  11. Isogai T, Yasunaga H, Matsui H, Tanaka H, Hisagi M, Fushimi K. Clinical Practice Patterns in Constrictive Pericarditis Patients with Heart Failure: A Retrospective Cohort Study Using a National Inpatient Database in Japan. Clinical Cardiology 2015;38(12):740-6
  12. Iwagami M, Yasunaga H, Noiri E, Horiguchi H, Fushimi K, Matsubara T, Yahagi N, Nangaku M. Choice of renal replacement therapy modality in intensive care units: data from a Japanese Nationwide Administrative Claim Database. Journal of Critical Care 2015;30(2):381-5
  13. Iwagami M, Yasunaga H. Current state of continuous renal replacement therapy for acute kidney injury in Japanese intensive care units in 2011: analysis of a national administrative d Nephrology Dialysis Transplantation 2015;30(6):988-95.
  14. Iwamoto T, Hashimoto H, Horiguchi H, Yasunaga H. Effectiveness of hospital functions for acute ischemic stroke treatment in in-hospital mortality: results from a nationwide survey in Japan. Journal of Epidemiology 2015;25(8):522-8.
  15. Kanehara A, Yamana H, Yasunaga H, Matsui H, Ando S, Okamura T, Kumakura Y, Fushimi K, Kasai K. Psychiatric Intervention and Repeated Admission to Emergency Centres Due to Drug Overdose. BJP Open 2015;1 (2):158-163
  16. Kikuchi H, Hashimoto H, Yasunaga H. Privacy-Preserving Epidemiological Analysis for a Distributed Database of Hospitals. AsiaJCIS 2015: 85- 90.
  17. Matsui H, Fushimi K, Yasunaga H. Variation in Risk-Standardized Mortality of Stroke among Hospitals in Japan. PlosOne 2015;10(10):e0139216.
  18. Matsumoto M, Koike S, Matsubara S, Kashima S, Ide H, Yasunaga H. Selection and concentration of obstetric facilities in Japan: a longitudinal study based on the national census data. Journal of Obstetrics and Gynaecology Research 2015;41(6):919-25
  19. Michihata N, Matsui H, Fushimi K, Yasunaga H. Guideline-Concordant Treatment of Kawasaki Disease with Immunoglobulin and Aspirin and the Incidence of Coronary Artery Aneurysm. Clinical Pediatrics 2015;54(11):1076-80.
  20. Michihata N, Matsui H, Fushimi K, Yasunaga H. Clinical features of adult patients admitted to pediatric wards in Japan. Journal of Adolescent Health 2015;57(4):421-4.
  21. Miyakawa K, Goto Y, Sunohara M, Yasunaga H, Nagase T. Serratia marcescens lung abscess with review of a Japanese national inpatient database. Case Reports in Internal Medicine 2015;2(2):40-43.
  22. Momosaki R, Yasunaga H, Matsui H, Abo M. Effect of dysphagia rehabilitation on oral intake in elderly patients with aspiration pneumonia. Geriatrics & Gerontology International 2015;15(6):694-9
  23. Momosaki R, Yasunaga H, Matsui H, Horiguchi H, Fushimi K, Abo M. Effect of Early Rehabilitation by Physical Therapists on In-hospital Mortality after Aspiration Pneumonia in the Elderly. Archives of Physical Medicine and Rehabilitation 2015;96(2):205-9.
  24. Morita K, Sasabuchi Y, Matsui H, Fushimi K, Yasunaga H. Outcomes After Early or Late Timing of Surgery for Infective Endocarditis with Ischemic Stroke: A Retrospective Cohort Study. Interactive CardioVascular and Thoracic Surgery 2015; doi:10.1093/icvts/ivv235.
  25. Naganuma M, Matsui H, Koizumi J, Fushimi K, Yasunaga H. Short-term Outcomes Following Elective Transcatheter Arterial Embolization for Splenic Artery Aneurysms: Data from a Nationwide Administrative Database. Acta Radiologica Open 2015;4(9):1–5
  26. Niikura R, Yasunaga H, Yamaji Y, Horiguchi H, Fushimi K, Yamada A, Hirata Y, Koike K. Factors affecting in-hospital mortality in patients with lower gastrointestinal tract bleeding: a retrospective study using a national database in Japan. J Gasrtoenterol 2015;50(5):533-40.
  27. Odagiri H, Yasunaga H, Matsui H, Fushimi K, Iizuka T, Kaise M. Hospital volume and the occurrence of bleeding and perforation following colorectal endoscopic submucosal dissection: analysis of a national administrative database in Japan. Diseases of the Colon & Rectum 2015;58(6):597-603
  28. Odagiri H, Matsui H, Fushimi K, Kaise M, Yasunaga H. Factors predicting perforation related to diagnostic balloon-assisted enteroscopy: analysis of the Diagnosis Procedure Combination database in Japan. Endoscopy 2015;47(2):143-6
  29. Odagiri H, Iizuka T, Yasunaga H. Unusual case of a submucosal tumor in the sigmoid colon. Saudi J Gastroenterology 2015;21(2):119-20.
  30. Odagiri H, Yasunaga H, Matsui H, Fushimi K, Iizuka T, Kaise M. Difference in Outcomes of Rectal Foreign Bodies between Males and Females: a Retrospective Analysis of a National Inpatient Database in Japan. Digestion 2015;92(3):165-70
  31. Ogura K, Fujiwara T, Yasunaga H, Matsui H, Joen DG, Cho WH, Hiraga H, Ishii T, Yonemoto T, Kamoda H, Ozaki T, Kozawa E, Nishida Y, Morioka H, Hiruma T, Kakunaga S, Osaka University Orthopaedic Oncology Group, Tsuda Y, Kawano H, Kawai A. Development and External Validation of Nomograms Predicting Distant Metastases and Overall Survival after Neoadjuvant Chemotherapy and Surgery for Patients with Non-metastatic Osteosarcoma: A Multi-institutional Study. Cancer 2015;121:3844–385
  32. Ohya J, Chikuda H, Kato H, Horiguchi H, Takeshita K, Tanaka S, Yasunaga H. Risks of in-hospital death and complications after fusion surgery in patients with atlantoaxial subluxation: analysis of 1,090 patients using the Japanese Diagnosis Procedure Combination Dat World Neurosurgery 2015;83(4):603-607
  33. Ohya J, Chikuda H, Oichi T, Horiguchi H, Takeshita K, Tanaka S, Yasunaga H. Perioperative Stroke in Patients Undergoing Elective Spinal Surgery: A Retrospective Analysis Using the Japanese Diagnosis Procedure Combination Database. BMC Musculoskeletal Disorders 2015;16:276
  34. Ono S, Ishomaru M, Matsui H, Fushimi K, Yasunaga H. Effect of Hospital Volume on Outcomes of Surgery for Cleft Lip and Palate. Journal of Oral and Maxillofacial Surgery. 2015;73(11):2219-24.
  35. Sako A, Yasunaga H, Matsui M, Fushimi K, Hamasaki H, Katsuyama H, Tsujimoto T, Goto A, , MPH, Yanai H. Hospitalization for hypoglycemia in Japanese diabetic patients: a retrospective study using a national inpatient database, 2008–2012. Medicine 2015;94(25):e1029
  36. Sasabuchi Y, Yasunaga H, Sanui M, Alan LT. The Dose-Response Relationship Between Body Mass Index and Mortality in Subjects Admitted to the ICU With and Without Mechanical Ventilation. Respiratory Care 2015;60(7):983-91.
  37. Sasabuchi Y, Yasunaga H, Matsui H, Lefor AT, Horiguchi H, Fushimi K, Sanui M. The volume-outcome relationship in critically ill patients in relation to the ICU-to-hospital bed ratio. Crit Care Med 2015;43(6):1239-45
  38. Sasabuchi Y, Yasunaga H, Matsui H, Lefor AK, Fushimi K, Sanui M. Carperitide increases the need for renal replacement therapy after cardiovascular surgery. Journal of Cardiothoracic and Vascular Anesthesia 2015;29(6):1426-31
  39. Sato M, Tateishi R, Yasunaga H, Horiguchi H, Yoshida H, Matsuda S, Fushimi K, Koike K. Variceal hemorrhage – Analysis of 9987 cases from a Japanese nationwide database. Hepatology Research 2015;45(3):288-93
  40. Shoda N, Yasunaga H, Horiguchi H, Fushimi K, Matsuda S, Kadono Y, Tanaka S. Prophylactic effect of fondaparinux and enoxaparin for preventing pulmonary embolism after total hip or knee arthroplasty: a retrospective observational study using the Japanese Diagnosis Procedure Combination Database. Modern Rheumatology 2015;11:1-5.
  41. Sugihara T, Yasunaga H, Yu C, Horiguchi H, Nishimatsu H, Fushimi K, Kattan MW, Homma Y. Perioperative Outcome Comparisons Between Open and Laparoscopic Nephroureterectomy Among a Population-Based Cohort from 2010 to 2012. Journal of Endourology 2015;29(7):770-6
  42. Suzuki S, Yasunaga H, Matsui H, Fushimi K, Yamasoba T. Factors Associated with Severe Epiglottitis in Adults: Analysis of Japanese Inpatient Database. Laryngoscope 2015;125(9):2072-8.
  43. Suzuki S, Yasunaga H, Matsui H, Fushimi K, Kondo K, Yamasoba T. Complication Rates After Functional Endoscopic Sinus Surgery: Analysis of 50,734 Japanese Patients. Laryngoscope 2015;125(8):1785-91.
  44. Tagami T, Matsui H, Horiguchi H, Fushimi K, Yasunaga H. Thoracic aortic injury in Japan: a nationwide retrospective cohort study. Circ J 2015; 79: 55–60
  45. Tagami T, Matsui H, Horiguchi H, Fushimi K, Yasunaga H. Recombinant human soluble thrombomodulin and mortality in severe pneumonia patients with sepsis-associated disseminated intravascular coagulation: an observational nationwide study. J Thrombosis Haemost 2015;13(1):31-40.
  46. Tagami T, Matsui H, Fushimi K, Yasunaga H. Use of recombinant human soluble thrombomodulin in patients with sepsis-induced disseminated intravascular coagulation after intestinal perforation. Frontiers in Medicine, section Intensive Care Medicine and Anesthesiology 2015;2:7.
  47. Tagami T, Matsui H, Fushimi K, Yasunaga H. Validation of the prognostic burn index: a nationwide retrospective study. Burns 2015;41(6):1169-75
  48. Tagami T, Matsui H, Fushimi K, Yasunaga H. Supplemental dose of antithrombin use in disseminated intravascular coagulation patients after abdominal sepsis. Thrombosis and Haemostasis 2015;114(3):537-45.
  49. Tagami T, Matsui H, Fushimi K, Yasunaga H. Intravenous Immunoglobulin and Mortality in Pneumonia Patients with Septic Shock: An Observational Nationwide Study. Clinical Infectious Diseases 2015;61(3):385-92
  50. Tagami T, Matsui H, Fushimi K, Yasunaga H. Intravenous immunoglobulin use in septic shock patients after emergency laparotomy. Journal of Infection 2015;71(2):158-66
  51. Tagami T, Matsui H, Fushimi K, Yasunaga H. Low-dose corticosteroid treatment and mortality in refractory abdominal septic shock after emergency laparotomy. Annals of Intensive Care 2015;5(1):32
  52. Tagami T, Matsui H, Horiguchi H, Fushimi K, Yasunaga H. Low-dose corticosteroid use and mortality in severe community-acquired pneumonia patients Eur Respir J. 2015;45(2):463-72
  53. Takeuchi M, Tomomasa T, Yasunaga H, Horiguchi H, Fushimi K. Descriptive Epidemiology of Children Hospitalized for Inflammatory Bowel Disease in Japan. Pediatrics International 2015;57(3):443-8.
  54. Tamiya H, Yasunaga H, Matusi H, Fushimi K, Ogawa S, Akishita M. Hypnotics and the occurrence of bone fractures in hospitalized dementia patients: a matched case-control study using a national inpatient database. Plos One 2015 Jun 10;10(6):e0129366.
  55. Tamiya H, Yasunaga H, Matusi H, Fushimi K, Akishita M, Ogawa S. Comparison of short-term mortality and morbidity between parenteral and enteral nutrition for adults without cancer: a propensity-matched analysis using a national inpatient database. American Journal of Clinical Nutrition 2015;102(5):1222-8.
  56. Tsuda Y, Yasunaga H, Horiguchi H, Fushimi K, Kawano H, Tanaka S. Association between dementia and postoperative complications after hip fracture surgery in the elderly: Analysis of 87654 patients using a national administrative database. Archives of orthopaedic and trauma surgery 2015;135(11):1511-7
  57. Wada T, Yasunaga H, Inokuchi R, Horiguchi H, Fushimi K, Matsubara T, Nakajima S, Yahagi N. Relationship between hospital volume and early outcomes in acute ischemic stroke patients treated with recombinant tissue plasminogen activator. International Journal of Stroke 2015;10(1):73-8.
  58. Wada T, Yasunaga H, Inokuchi R, Matsui H, Matsubara T, Ueda Y, Gunshin M, Ishii T, Doi K, Kitsuta Y, Nakajima S, Fushimi K, Yahagi N. Effectiveness of surgical rib fixation on prolonged mechanical ventilation in patients with traumatic rib fractures: a propensity-score matched analysis. Journal of Critical Care 2015;30(6):1227-31
  59. Yamamoto H, Hashimoto H, Nakamura Horiguchi H, Yasunaga H. Relationship between hospital volume and hemorrhagic complication after percutaneous renal biopsy: results from the Japanese Diagnosis Procedure Combination Database. Clinical and Experimental Nephrology 2015;19(2):271-7.
  60. Yamana H, Matsui H, Fushimi K, Yasunaga H. Treatment options and outcomes of hospitalised tuberculosis patients: a nationwide study. The International Journal of Tuberculosis and Lung Disease 2015;19(1):120-6
  61. Yamana H, Matsui H, Sasabuchi Y, Fushimi K, Yasunaga H. Categorized diagnoses and procedure records in an administrative database improved mortality prediction. J Clin Epidemiol 2015;68(9):1028-35.
  62. Yamana H, Matsui H, Sasabuchi Y, Fushimi K, Yasunaga H. Procedure-based severity index for inpatients: development and validation using administrative database. BMC Health Services Research 2015;15:261.
  63. Yamauchi Y, Yasunaga H, Matsui H, Hasegawa W, Jo T, Takami K, Fushimi K, Nagase T. Comparison of in-hospital mortality in patients with obstructive airway disease. Respirology. 2015;20(6):940-6.
  64. Yamauchi Y, Yasunaga H, Matsui H, Hasegawa W, Jo T, Takami K, Fushimi K, Nagase T. Comparison of clinical characteristics and outcomes between aspiration pneumonia and community-acquired pneumonia in patients with chronic obstructive pulmonary disease. BMC Pulmonary Medicine 2015;15(1):69.
  65. Yasunaga H. Effect of Japanese Herbal Kampo Medicine Goreisan on Reoperation Rates after Burr-hole Surgery for Chronic Subdural Hematoma: Analysis of a National Inpatient Database. Evidence-Based Complementary and Alternative Medicine 2015; Article ID 817616

[2014]

  1. Chikuda H Yasunaga H, Takeshita K, Horiguchi H, Kawaguchi H, Ohe K, Fushimi K, Tanaka S. Mortality and morbidity after high-dose methylprednisolone treatment in patients with acute cervical spinal cord injury: A propensity matched analysis using a nationwide administrative database. Emergency Medicine Journal 2014;31(3):201-6
  2. Chikuda H Yasunaga H, Takeshita K, Horiguchi H, Kawaguchi H, Fushimi K, Tanaka S. Ischemic Stroke after Cervical Spine Injury: Analysis of 11,005 Patients Using the Japanese Diagnosis Procedure Combination Database. Spine Journal 2014 14(10):2275-80.
  3. Hamada T, Yasunaga H, Nakai Y, Isayama H, Horiguchi H, Fushimi K, Koike K. Impact of hospital volume on outcomes in acute pancreatitis: a study using a nationwide administrative database. J Gastroenterol 2014;49:148-55.
  4. Hamada T, Nakai Y, Yasunaga H, Isayama H, Matsui H, Takahara N, Sasaki T, Takagi K, Watanabe T, Yagioka H, Kogure H, Arizumi T, Yamamoto N, Ito Y, Hirano K, Tsujino T, Tada M, Koike K. Prognostic nomogram for nonresectable pancreatic cancer treated with gemcitabine-based chemotherapy. British Journal of Cancer 2014;110(8):1943-9.
  5. Hamada T, Yasunaga H, Nakai Y, Isayama H, Horiguchi H, Matsuda S, Fushimi K, Koike K. Severe bleeding and perforation are rare complications of endoscopic ultrasound-guided fine needle aspiration for pancreatic masses: An analysis of 3,090 patients from 212 hospitals. Gut and Liver 2014;8(2):215-8.
  6. Hasegawa W, Yamauchi Y, Yasunaga H, Sunohara M, Jo T, Matsui H, Fushimi K, Takami K, Nagase T. Factors affecting mortality following emergency admission for chronic obstructive pulmonary disease. BMC Pulmonary Medicine 2014;14:151.
  7. Inokuchi H, Yasunaga H, Nakahara Y, Horiguchi H, Ogata N, Fujitani J, Matsuda S, Fushimi K, Haga N. Effect of Rehabilitation on Mortality of Patients with Guillain-Barre Syndrome: A Propensity-matched Analysis Using a Nationwide Database. Eur J Phys Rehabil Med 2014;50(4):439-46
  8. Isogai T, Yasunaga H, Matsui H, Tanaka H, Ueda T, Horiguchi H, Fushimi K. Out-of-hospital versus in-hospital Takotsubo cardiomyopathy: analysis of 3719 patients in the Diagnosis Procedure Combination database in Japan. International Journal of Cardiology 2014;176(2):413-7.
  9. Iwagami M, Yasunaga H, Doi K, Horiguchi H, Fushimi K, Matsubara T, Yahagi N, Noiri E. Postoperative Polymyxin B Hemoperfusion and Mortality in Patients with Abdominal Septic Shock: A Propensity-Matched Analysis. Crit Care Med 2014;42(5):1187-93
  10. Kumamaru H, Tsugawa Y, Horiguchi H, Kumamaru KK, Hashimoto H, Yasunaga H. Association between Hospital Case Volume and Mortality in Non-elderly Pneumonia Patients Stratified by Severity: a Retrospective Cohort Study. BMC Health Services Research 2014 ;14:302
  11. Lee SL, Hashimoto H, Kohro T, Horiguchi H, Koide D, Komuro I, Fushimi K, Yamazaki T, Yasunaga H. Influence of Municipality-Level Mean Income on Access to Aortic Valve Surgery: A Cross-Sectional Observational Study under Japan’s Universal Health-Care Coverage. Plos One 2014 ;9(10):e111071
  12. Michihata N, Matsui H, Fushimi K, Yasunaga H. Comparison between Enteral Nutrition and Intravenous Hyperalimentation in Patients with Eating Disorders: Results from the Japanese Diagnosis Procedure Combination Database. Eating and Weight Disorders – Studies on Anorexia, Bulimia and Obesity 2014 ;19(4):473-8
  13. Ogura K, Yasunaga H, Horiguchi H, Fushimi K, Tanaka S, Kawano H. Nomogram Predicting Severe Adverse Events after Musculoskeletal Tumor Surgery: Analysis of a National Administrative Database. Annals of Surgical Oncology 2014;21(11):3564-71
  14. Ogura K, Yasunaga H, Horiguchi H, Fushimi K, Kawano H. What Is the Effect of Advanced Age and Comorbidity on Postoperative Morbidity and Mortality After Musculoskeletal Tumor Surgery? Clinical Orthopaedics and Related Research 2014 ;472(12):3971-8
  15. Sako A, Yasunaga H, Horiguchi H, Fushimi K, Yanai H, Uemura N. Prevalence and In-hospital Mortality of Gastrostomy and Jejunostomy in Japan: A Retrospective Study Using a National Administrative Database. Gastrointestinal Endoscopy 2014;80:88-96.
  16. Sato M, Tateishi R, Yasunaga H, Horiguchi H, Yoshida H, Matsuda S, Fushimi K, Koike K. Acute liver disease in Japan – a nationwide analysis of the Japanese Diagnosis Procedure Combination database. J Gastroenterol 2014;49(3):547-54
  17. Sugihara T, Yasunaga H, Horiguchi H, Matsuda S, Fushimi K, Kattan M, Homma Y. Does mechanical bowel preparation ameliorate damage from rectal injury in radical prostatectomy? Analysis of 151 rectal injury cases. Int J Urol 2014;21(6):566-70
  18. Sugihara T, Yasunaga H, Horiguchi H, Fushimi K, Dalton J, Schold J, Kattan M, Homma Y. Performance comparisons in major uro-oncological surgeries between the United States and Japan. Int J Urol 2014 ;21(11):1145-50
  19. Sugihara T, Yasunaga H, Horiguchi H, Matsui H, Nishimatsu H, Nakagawa T, Fushimi K, Kattan MW, Homma Y. Comparison of Perioperative Outcomes Including Severe Bladder Injury Between Monopolar and Bipolar Transurethral Resection of Bladder Tumors: A Population-Based Comparison. Journal of Urology 2014;192(5):1355-9.
  20. Sugihara T, Yasunaga H, Horiguchi H, Matsui H, Fujimura T, Nishimatsu H, Fukuhara H, Kume H, Changhong Y, Kattan MW, Fushimi K, Homma Y. Robot-assisted versus other types of radical prostatectomy: population-based safety and cost comparison in Japan, 2012–2013. Cancer Science 2014 ;105(11):1421-6
  21. Sugihara T, Yu C, Kattan MW, Yasunaga H, Ihara H, Onozawa M, Hinotsu S, Akaza H. Long-Term Survival in Extremely Advanced Prostate Cancer Patients Diagnosed with Prostate Specific Antigen over 500 ng/mL. Japanese Journal of Clinical Oncology 2014 ;44(12):1227-32.
  22. Sumitani M, Yasunaga H, Uchida K, Horiguchi H, Nakamura M, Ohe K, Fushimi K, Matsuda S, Yamada Y. Perioperative factors affecting the occurrence of acute complex regional pain syndrome following limb bone fracture surgery: Data from the Japanese Diagnosis Procedure Combination database. Rheumatology 2014;53(7):1186-93
  23. Suzuki S, Yasunaga H, Matsui H, Horiguchi H, Fushimi K, Yamasoba T. Impact of Systemic Steroids on Posttonsillectomy Bleeding: Analysis of 61430 Patients using a National Inpatient Database in Japan. JAMA Otolaryngology-Head & Neck Surgery 2014 ;140(10):906-10.
  24. Tagami T, Matsui H, Horiguchi H, Fushimi K, Yasunaga H. Antithrombin and mortality in severe pneumonia patients with sepsis-associated disseminated intravascular coagulation: an observational nationwide study. J Thrombosis Haemost 2014 ;12(9):1470-9
  25. Taguchi M, Kubo T, Yamamoto M, Muramatsu K, Yasunaga H, Horiguchi H, Fujimori K, Matsuda S, Fushimi K, Harada M. Body Mass Index Influences the Outcome of Acute Pancreatitis: An Analysis Based on the Japanese Administrative Database. Pancreas 2014 ;43(6):863-6.
  26. Takagi T, Sugihara T, Yasunaga H, Horiguchi H, Fushimi K, Kattan MW, Homma Y, Tanabe K. Cytoreductive nephrectomy for metastatic renal cell carcinoma: a population-based analysis of perioperative outcomes according to clinical stage. Int J Urol 2014 ;21(8):770-5.
  27. Tsuda Y, Yasunaga H, Horiguchi H, Fushimi K, Kawano H, Tanaka S. Effects of Fondaparinux on Pulmonary Embolism following Hemiarthroplasty for Femoral Neck Fracture: a Retrospective Observational Study Using the Japanese Diagnosis Procedure Combination Database. J Orthop Sci 2014 ;19(6):991-6.
  28. Uchida K, Yasunaga H, Sumitani M, Horiguchi H, Fushimi K, Yamada Y. Effects of Remifentanil on In-hospital Mortality and Length of Stay Following Clipping of Intracranial Aneurysm: A Propensity Score Matched Analysis. J Neurosurg Anesth 2014 ;26(4):291-8.
  29. Uehara K, Yasunaga H, Morizaki Y, Horiguchi H, Fushimi K, Tanaka S. Necrotising soft-tissue infections of the upper limb: risk factors for amputation and death. Bone Joint J 2014;96-B(11):1530-4.
  30. Uematsu H, Hashimoto H, Iwamoto T, Horiguchi H, Yasunaga H. Impact of guideline-concordant microbiological testing on outcomes of pneumonia. Int J Quality Health Care 2014;26(1):100-7.
  31. Wada T, Yasunaga H, Inokuchi R, Horiguchi H, Fushimi K, Matsubara T, Nakajima S, Yahagi N. Effects of Edaravone on Early Outcomes in Acute Ischemic Stroke Patients Treated with Recombinant Tissue Plasminogen Activator. Journal of the Neurological Sciences 2014 ;345(1-2):106-11.
  32. Yamamoto H, Hashimoto H, Nakamura Horiguchi H, Yasunaga H. Relationship between hospital volume and hemorrhagic complication after percutaneous renal biopsy: results from the Japanese Diagnosis Procedure Combination Database. Clinical and Experimental Nephrology 2014 epub
  33. Yoshioka R, Yasunaga H, Hasegawa K, Horiguchi H, Fushimi K, Aoki T, Sakamoto Y, Sugawara Y, Kokudo N. Hospital volume affects in-hospital mortality, length of stay, and total costs after pancreaticoduodenectomy: Analysis of data from 10,652 patients from the Japanese Diagnosis Procedure Combination database. Brit J Surg 2014;101(5):523-9.

[2013]

  1. Yasunaga H, Horiguchi H, Kuwabara K, Matsuda S, Fushimi K, Hashimoto H, Ayanian JZ. Outcomes After Laparoscopic or Open Distal Gastrectomy for Early-stage Gastric Cancer: A Propensity-matched Analysis. Ann Surg 2013;257(4):640-6
  2. Yasunaga H, Horiguchi H, Matsuda S, Fushimi K, Hashimoto H, Ayanian JZ. Body mass index and outcomes following gastrointestinal cancer surgery in Japan: A retrospective cohort study. Brit J Surg 2013;100:1335–43
  3. Yasunaga H, Horiguchi H, Hashimoto H, Matsuda S, Fushimi K. Effect and Cost of Treatment for Acute Pancreatitis With or Without Gabexate Mesylate: A Propensity Score Analysis Using a Nationwide Administrative Database. Pancreas 2013;42(2):260-4
  4. Akahane M, Tanabe S, Ogawa T, Koike S, Horiguchi H, Yasunaga H, Imamura T. Characteristics and Outcomes of Pediatric Out-of-Hospital Cardiac Arrest by Scholastic Age Category. Pediatric Critical Care Medicine 2013;14(2):130-6
  5. Akiyama T, Chikuda H, Yasunaga H, Horiguchi H, Fushimi K, Saita K. Incidence and Risk Factors for Mortality of Vertebral Osteomyelitis: A Retrospective Analysis Using the Japanese Diagnosis Procedure Combination Database. BMJ Open 2013;3:e002412.
  6. Chikuda H, Yasunaga H, Horiguchi H, Takeshita K, Sugita S, Taketomi S, Fushimi K, Tanaka S. Impact of Age and Comorbidity Burden on Mortality and Major Complications in Older Adults Undergoing Orthopaedic Surgery: An Analysis Using the Japanese Diagnosis Procedure Combination Database. BMC Musculoskeletal Disorders 2013;14(1):173
  7. Fukuda T, Yasunaga H, Horiguchi H, Ohe K, Fushimi K, Matsubara T, Yahagi N. Health care costs related to out-of-hospital cardiopulmonary arrest in Japan. Resuscitation 2013 ;84(7):964-9.
  8. Hamada T, Yasunaga H, Nakai Y, Isayama H, Horiguchi H, Matsuda S, Fushimi K, Koike K. Rarity of severe bleeding and perforation in endoscopic ultrasound-guided fine needle aspiration for submucosal tumors. Digestive Diseases Science 2013;58:2634-8.
  9. Hamada T, Yasunaga H, Nakai Y, Isayama H, Horiguchi H, Matsuda S, Fushimi K, Koike K. Continuous regional arterial infusion for acute pancreatitis: A propensity score analysis using a nationwide administrative database. Critical Care 2013;17(5):R214.
  10. Hamada T, Yasunaga H, Nakai Y, Isayama H, Horiguchi H, Fushimi K, Ohe K, Koike K. Japanese Severity Score for Acute Pancreatitis Well Predicts In-hospital Mortality: A Nationwide Survey of 17,901 Cases. Journal of Gastroenterology 2013;48(12):1384–91
  11. Nakamura M, Yasunaga H, Ando S, Haraguchi T, Sugihara T, Horiguchi H, Ohe K, Matsuda S, Fushimi K. Length of mechanical restraint following haloperidol injections versus oral atypical antipsychotics for the initial treatment of acute schizophrenia: A Propensity-Matched Analysis from the Japanese Diagnosis Procedure Combination Database. Psychiatry Research 2013;209:412-6
  12. Nakamura M, Yasunaga H, Shimada T, Horiguchi H, Matsuda S, Fushimi K. Body mass index and in-hospital mortality in anorexia nervosa: data from the Japanese Diagnosis Procedure Combination Database. Eating and Weight Disorders 2013;18(4):437-9.
  13. Ogura K, Yasunaga H, Horiguchi H, Ohe K, Shinoda Y, Tanaka S, Kawano H. Incidence and risk factors for postoperative pulmonary embolism following primary musculoskeletal tumor surgery: Analysis of a national administrative database. Clin Orthop Relat Res 2013;471:3310-6.
  14. Ogura K, Yasunaga H, Horiguchi H, Ohe K, Shinoda Y, Tanaka S, Kawano H. Impact of Hospital Volume on Postoperative Complications and In-hospital Mortality after Musculoskeletal Tumor Surgery: Analysis of a National Administrative Database. J Bone Joint Surg Am 2013;95(18):1684-91.
  15. Sone M, Mizunuma K, Nakajima Y, Yasunaga H, Ohtomo K. Job satisfaction, income, workload, workplace, and demographics of Japanese radiologists in the 2008 survey. Japanese Journal of Radiology 2013;31:364-70.
  16. Sugihara T, Yasunaga H, Horiguchi H, Nishimatsu H, Kume H, Ohe K, Matsuda S, Fushimi K, Homma Y. A Nomogram Predicting Severe Adverse Events after Ureteroscopic Lithotripsy: 12,372 Patients in Japanese National Series. BJU Int 2013;111(3):459-66
  17. Sugihara T, Yasunaga H, Horiguchi H, Fujimura T, Nishimatsu H, Kume H, Ohe K, Matsuda S, Fushimi K, Homma Y. Is mechanical bowel preparation in laparoscopic radical prostatectomy beneficial? An analysis of a Japanese national database. BJU Int 2013 ;112(2):E76-81.
  18. Sugihara T, Yasunaga H, Horiguchi H, Fujimura T, Nishimatsu H, Tsuru N, Kazuo S, Ohe K, Fushimi K, Homma Y. Regional, institutional and individual factors affecting selection of minimally invasive nephroureterectomy in Japan: A national database analysis. Int J Urol 2013 ;81(1):74-9
  19. Sugihara T, Yasunaga H, Horiguchi H, Tsuru N, Ihara H, Fujimura T, Nishimatsu H, Ohe K, Fushimi K, Homma Y. Comparisons of perioperative outcomes and costs between open and laparoscopic radical prostatectomy: a propensity-score matching analysis based on the Japanese Diagnosis Procedure Combination database. Int J Urol 2013;20:349-53.
  20. Sugihara T, Yasunaga H, Horiguchi H, Fujimura T, Nishimatsu H, Ohe K, Matsuda S, Fushimi K, Kattan MW, Homma Y. Does Mechanical Bowel Preparation Improve Quality of Laparoscopic Nephrectomy? Propensity Score-matched Analysis in Japanese Series. Urology 2013;81(1):74-9.
  21. Sugihara T, Yasunaga H, Horiguchi H, Tsuru N, Fujimura T, Nishimatsu H, Kume H, Ohe K, Matsuda S, Fushimi K, Homma Y. Wide Range and Variations in Minimally Invasive Surgery For Renal Malignancy in Japan: A Population Based Analysis. Int J Clin Oncol 2013;18:1070–1077.
  22. Sugihara T, Yasunaga H, Horiguchi H, Fujimura T, Nishimatsu H, Kume H, Ohe K, Matsuda S, Fushimi K, Homma Y. Longer operative time is associated with higher risk of severe complications after percutaneous nephrolithotomy: analysis of 1511 cases from a Japanese nationwide database. Int J Urol 2013;20(12):1193-8.
  23. Takeuchi M, Yasunaga H, Horiguchi H, Hashimoto H, Matsuda S. Pyloromyotomy versus intravenous atropine therapy for the treatment of infantile pyloric stenosis: an analysis using nationwide hospital discharge database. Pediatrics International 2013;55(4):488-91
  24. Takeuchi M, Yasunaga H, Horiguchi H, Matsuda S. The Burden of Epiglottitis Among Japanese Children Before the Vaccination Era: an Analysis Using a Nationwide Administrative Database. Journal of Infection and Chemotherapy 2013;19:876-9.
  25. Tanabe S, Ogawa T, Akahane M, Koike S, Horiguchi H, Yasunaga H, Mizoguchi T, Hatanaka T, Yokota H, Imamura T. Comparison of Neurological Outcome between Tracheal Intubation and Supraglottic Airway Device Insertion of Out-of-hospital Cardiac Arrest Patients: A Nationwide, Population-based, Observational Study. Journal of Emergency Medicine 2013;44(2)389-397.
  26. Tsugawa Y, Kumamaru H, Yasunaga H, Hashimoto H, Horiguchi H, Ayanian JZ. The Association of Hospital Volume with Mortality and Costs of Care for Acute Stroke in Japan. Medical Care 2013;51:782–8.

[2012]

  1. Yasunaga H, Horiguchi H, Matsuda S, Fushimi K, Hashimoto H, Ohe K, Kokudo N. Relationship between hospital volume and operative mortality for liver resection: data from the Japanese Diagnosis Procedure Combination database.  Hepatol Res 2012;42(11):1073-1080
  2. Yasunaga H, Hashimoto H, Horiguchi H, Miyata S, Matsuda S. Variation in cancer surgical outcomes associated with physician and nurse staffing: a retrospective observational study using the Japanese Diagnosis Procedure Combination Database. BMC Health Serv Res 2012;12:129.
  3. Yasunaga H, Horiguchi H, Hashimoto H, Matsuda S, Fushimi K. The Burden of Clostridium difficile–Associated Disease following Digestive Tract Surgery in Japan. J Hosp Infect 2012 ;82(3):175-80.
  4. Akahane M, Ogawa T, Tanabe S, Koike S, Horiguchi H, Yasunaga H, Imamura T. Impact of Telephone Dispatcher Assistance on the Outcomes of Pediatric Out-of-Hospital Cardiac Arrest.  Crit Care Med 2012 ;40(5):1410-6
  5. Akahane M, Tanabe T, Koike S, Ogawa T, Horiguchi H, Yasunaga H, Imamura T. Elderly out-of-hospital cardiac arrest has worse outcomes with a family bystander than a non-family bystander. Int J Emerg Med 2012;5(1):41.
  6. Chikuda H, Yasunaga H, Horiguchi H, Takeshita K, Kawaguchi H, Matsuda S, Nakamura K. Mortality and morbidity in dialysis-dependent patients undergoing spinal surgery: analysis of a national administrative database in Japan.  J Bone Joint Surg Am 2012;94(5):433-8.
  7. Horiguchi H, Yasunaga H, Hashimoto H, Ohe K. A User-friendly Tool to Transform Large Scale Administrative Data into Wide Table Format using a MapReduce Program with a Pig Latin based Script. BMC Medical Informatics and Decision Making 2012;12:151.
  8. Kodama T, Koike S, Matsumoto S, Ide H, Yasunaga H, Imamura T. The working status of Japanese female physicians by area of practice: cohort analysis of taking leave, returning to work, and changing specialties from 1984-2004.  Health Policy 2012;105(2-3):214-220
  9. Koike S, Ide H, Kodama T, Matsumoto S, Yasunaga H, Imamura T. Physician–Scientists in Japan: Attrition, Retention, and Implications for the Future. Academic Medicine 2012;87(5):662-7
  10. Masuda K, Chikuda H, Yasunaga H, Hara N, Horiguchi H, Matsuda S, Takeshita K, Kawaguchi H, Nakamura K. Factors affecting the occurrence of pulmonary embolism following spinal surgery: data from the national administrative database in Japan. Spine Journal 2012;12(11):1029-34
  11. Nakamura M, Yasunaga H, Miyata H, Shimada T, Horiguchi H, Matsuda S. Mortality of Neuroleptic Malignant Syndrome Induced by Typical and Atypical Antipsychotic Drugs: A Propensity-matched Analysis from the Japanese Diagnosis Procedure Combination Database.  The Journal of Clinical Psychiatry 2012;73(4):427–430
  12. Nakamura M, Yasunaga H, Toda AA, Sugihara T, Imamura T. The Impact of Media Reports on the 2008 Outbreak of Hydrogen Sulfide Suicides in Japan. International Journal of Psychiatry in Medicine 2012; 44(2) 133-140.
  13. Sato M, Tateishi R, Yasunaga H, Horiguchi H, Yoshida H, Matsuda S, Koike K. Mortality and morbidity of hepatectomy, radiofrequency ablation or embolization for hepatocellular carcinoma – a national survey of 54,145 patients.  J Gastroenterol 2012;47(10):1125-33
  14. Shoda N, Yasunaga H, Horiguchi H, Kadono Y, Matsuda S, Tanaka S. Risk factors affecting in-hospital mortality after hip fracture: retrospective analysis using the Japanese Diagnosis Procedure Combination database. BMJ Open 2012;2(3). pii: e000416
  15. Sugihara T, Yasunaga H, Horiguchi H, Nakamura M, Nomiya A, Nishimatsu H, Matsuda S, Homma Y. Admissions related to interstitial cystitis in Japan: An estimation based on the Japanese Diagnosis Procedure Combination database.  Int J Urol 2012;19:86-9.
  16. Sugihara T, Yasunaga H, Horiguchi H, Nishimatsu H, Fukuhara H, Enomoto Y, Kume H, Ohe K, Matsuda S, Homma Y. Management Trends, Angioembolization Performance, and Multiorgan Injury Indicators of Renal Trauma from Japanese Administrative Claims Database.  Int J Urol 2012;19(6):559-63
  17. Sugihara T, Yasunaga H, Horiguchi H, Nakamura M, Nishimatsu H, Kume H, Ohe K, Matsuda S, Homma Y. In-hospital outcomes and cost assessment between bipolar versus monopolar transurethral resection of the prostate.  Journal of Endourology 2012;26:1053-8.
  18. Sugihara T, Yasunaga H, Horiguchi H, Fujimura T, Ohe K, Matsuda S, Fushimi K, Homma Y. Impact of surgical intervention timing on Fournier’s gangrene case fatality: an analysis of 379 cases.  BJU Int 2012;110(11):E1096-100
  19. Sugihara T, Yasunaga H, Horiguchi H, Nishimatsu H, Hirano Y, Matsuda S, Homma Y. Renal haemorrhage risk after extracorporeal shockwave lithotripsy: results from the Japanese Diagnosis Procedure Combination Database. BJU Int 2012;110(8 Pt B):E332-8.
  20. Takeuchi M, Yasunaga H, Horiguchi H, Matsuda S. Clinical Features of Infants Hospitalized for 2009 Pandemic Influenza A (H1N1) in Japan: Analysis Using Hospital Discharge Database. Pediatr Infect Dis J 2012;31(4):368-72
  21. Takeuchi M, Yasunaga H, Horiguchi H, Matsuda S. The Incidence of pertussis hospitalizations among Japanese infants: excess hospitalizations and complications? Epidemiol Infect. 2012;140(8):1497-1502.
  22. Takeuchi M, Osamura T, Yasunaga H, Horiguchi H, Hashimoto H, Matsuda S. Intussusception among Japanese children: an epidemiologic study using an administrative database. BMC Pediatrics 2012, 12:36
  23. Tanabe S, Yasunaga H, Ogawa T, Koike S, Akahane M, Horiguchi H, Hatanaka T, Yokota H, Imamura T. Comparison of Outcomes after Use of Biphasic or Monophasic Defibrillators Among Out-of-Hospital Cardiac Arrest Patients: A Nationwide Population-Based Observational Study. Circulation: Cardiovascular Quality and Outcomes 2012;5(5):689-96.
  24. Tanabe S, Yasunaga H, Koike S, Akahane M, Ogawa T, Horiguchi H, Hatanaka T, Yokota H, Imamura H. Monophasic versus biphasic defibrillation for paediatric out-of-hospital cardiac arrest patients: a nationwide population-based study in Japan. Critical Care 2012;16(6):R219.
  25. Uchida K, Yasunaga H. Impact of Remifentanil Use on Early Postoperative Outcomes Following Brain Tumor Resection or Rectal Cancer Surgery. J Anesth 2012;26(5):711-20

[2011]

  1. Yasunaga H, Horiguchi H, Kuwabara K, Hashimoto H, Matsuda S. Delay in Tetracycline Treatment Increases the Risk of Complications in Tsutsugamushi Disease.  Intern Med 2011;50(1):37-42.
  2. Yasunaga H, Horiguchi H, Kuwabara K, Hashimoto H, Matsuda S. Venomous Snake Bites in Japan.  Am J Trop Med Hyg 2011;84(1):135-136.
  3. Yasunaga H, Miyata H, Horiguchi H, Kuwabara K, Hashimoto H, Matsuda S. Effect of the Japanese herbal Kampo medicine Dai-kenchu-to on postoperative adhesive small bowel obstruction requiring long-tube decompression: a propensity score analysis.  Evidence-Based Complementary and Alternative Medicine 2011, Article ID 264289, 7 pages
  4. Yasunaga H, Miyata H, Horiguchi H, Tanabe S, Akahane M, Ogawa T, Koike S, Imamura T. Population Density, Call-response Interval, and Survival of Out-of-hospital Cardiac Arrest.  International Journal of Health Geographics 2011; 10:26.
  5. Yasunaga H, Sugihara T, Imamura T. Difference in Willingness-to-pay for Prostate Cancer Screening between Ill-informed and Well-informed Men: A Contingent Valuation Survey.  Urology 2011;77(6):1325-9.
  6. Akahane M, Ogawa T, Koike S, Tanabe S, Horiguchi H, Mizoguchi T, Yasunaga H, Imamura T. The effects of sex on out-of-hospital cardiac arrest outcomes.  The American Journal of Medicine 2011;124(4):325-33
  7. Hashimoto H, Ikegami N, Shibuya K, Izumida N, Noguchi H, Yasunaga H, Miyata H, Acuin JM, Reich MR. Cost containment and quality of care in Japan: is there a trade-off?  Lancet 2011;378(9797):1174-1182.
  8. Horiguchi H, Yasunaga H, Hashimoto H, Matsuda S. Incidence of severe adverse events requiring hospital care after trastuzumab infusion for metastatic breast cancer: a nationwide survey using an administrative claim database.  Breast J 2011;17(6):683-5.
  9. Koike K, Tanabe T, Ogawa T, Akahane M, Yasunaga H, Horiguchi H, Matsumoto S, Imamura T. Effect of time and day of admission on 1-month survival and neurologically favourable 1-month outcome in out-of-hospital cardiopulmonary arrest patients.  Resuscitation 2011;82(7):863-8.
  10. Koike S, Tanabe T, Ogawa T, Akahane M, Yasunaga H, Horiguchi H, Matsumoto S, Imamura T. Immediate defibrillation or defibrillation after cardiopulmonary resuscitation.  Prehospital Emergency Care 2011; 15(3):393-400.
  11. Koike S, Ogawa T, Tanabe T, Matsumoto S, Akahane M, Yasunaga H, Horiguchi H, Imamura T. Collapse-to-emergency medical service cardiopulmonary resuscitation interval and outcomes of out-of-hospital cardiopulmonary arrest: a nationwide observational study.  Critical Care 2011 2011;15:R120.
  12. Kuwabara K, Matsuda S, Fushimi K, Ishikawa KB, Horiguchi H, Fujimori K, Yasunaga H, Miyata H. Quantitative Assessment of the Advantages of Laparoscopic Gastrectomy and the Impact of Volume-Related Hospital Characteristics on Resource Use and Outcomes of Gastrectomy Patients in Japan.  Ann Surg 2011;253(1):64-70.
  13. Nagase Y, Yasunaga H, Horiguchi H, Hashimoto H, Shoda N, Kadono Y, Matsuda S, Nakamura K, Tanaka S. Risk factors for pulmonary embolism and the effects of fondaparinux after total hip and knee arthroplasty: a retrospective observational study with use of a national database in Japan.  J Bone Joint Surg Am 2011; 93:e146 (1-7).
  14. Otake H, Yasunaga H, Horiguchi H, Matsutani N, Matsuda S, Ohe K. Impact of hospital volume on chest tube duration, length of stay and mortality following lobectomy.  Ann Thorac Surg 2011;92:1069-75.
  15. Sako A, Yasunaga H, Horiguchi H, Hashimoto H, Masaki N, Matsuda S. Acute Hepatitis B in Japan: Incidence, Clinical Practices and Health Policy.  Hepatol Res 2011;41(1):39-45.
  16. Sugihara H, Yasunaga H, Horiguchi H, Nishimatsu H, Kume H, Matsuda S, Homma Y. Impact of Hospital Volume and Laser Usage on Postoperative Complications and In-hospital Mortality After Transurethral Surgery of Benign Prostate Hyperplasia: Japanese Diagnosis Procedure Combination Database.  J Urol 2011;185:2248-2253.
  17. Sugihara T, Yasunaga H, Horiguchi H, Nishimatsu H, Matsuda S, Homma Y. Incidence rate and clinical features of priapism in Japan; 46 cases from Japanese Diagnosis Procedure Combination database 2006-2008.  International Journal of Impotence Research 2011;23(2):76-80.
  18. Sumitani M, Uchida K, Yasunaga H, Horiguchi H, Kusakabe Y, Matsuda S, Yamada Y. Prevalence of Malignant Hyperthermia and Relationship with Anesthetics in Japan: Data from the Diagnosis Procedure Combination Database.  Anesthesiology 2011;114(1):84-90.
  19. Uchida K, Yasunaga H, Miyata H, Sumitani M, Horiguchi H, Kuwajima K, Matsuda S, Yamada Y. Impact of remifentanil introduction on practice patterns in general anesthesia.  J Anesth 2011;25(6):864-71.

[2010]

  1. Yasunaga H, Horiguchi H, Kuwabara K, Hashimoto H, Matsuda S. Clinical features of Bowel Anisakiasis in Japan.  Am J Trop Med Hyg 2010; 83: 104-105.
  2. Yasunaga H, Horiguchi H, Tanabe S, Akahane M, Ogawa T, Koike S, Imamura T. Collaborative effects of bystander-initiated cardiopulmonary resuscitation and prehospital advanced cardiac life support by physicians on survival of out-of-hospital cardiac arrest: a nationwide population-based observational study.  Critical Care 2010;14(6):R199.
  3. Yasunaga H, Shi Y, Takeuchi M, Horiguchi H, Hashimoto H, Matsuda S, Ohe K. Measles-related Hospitalizations and Complications in Japan, 2007-2008.  Internal Medicine 2010; 49: 1965-1970.
  4. Yasunaga H, Yanaihara H, Fuji K, Horiguchi H, Hashimoto H, Matsuda S. Impact of hospital volume on postoperative complications and in-hospital mortality following renal surgery: data from the Japanese diagnosis procedure combination database.  Urology 2010; 76: 548–552
  5. Horiguchi H, Yasunaga H, Hashimoto H, Matsuda S. Impact of drug-eluting stents on treatment option mix for coronary artery disease in Japan.  Circ J 2010;74(8):1635-1643.
  6. Ide H, Koike S, Yasunaga H, Kodama T, Ohe K, Imamura T. Long-term Career Transition in the Surgical Workforce of Japan: A Retrospective Cohort Study Using the Nationwide Survey of Physicians Data from 1972 to 2006.  World J Surg 2010;34(8):1748-1755.
  7. Kadono Y, Yasunaga H, Horiguchi H, Hashimoto H, Matsuda S, Tanaka S, Nakamura K. Statistics in orthopaedic surgery 2006-2007: Data from the Japanese Diagnosis Procedure Combination (DPC) database.  J Orthop Sci 2010; 15: 162-70
  8. Koike S, Ide H, Yasunaga H, Kodama T, Matsumoto S, Imamura T. Postgraduate training and career choices: an analysis of the National Physicians Survey in Japan.  Medical Education 2010；44: 289-297.
  9. Koike S, Kodama T, Matsumoto S, Ide H, Yasunaga H, Imamura T. Residency Hospital Type and Career Paths in Japan: An Analysis of Physician Registration Cohorts. Medical Teacher 2010;32(6):e239-47.
  10. Koike S, Kodama T, Matsumoto S, Ide H, Yasunaga H, Imamura T. Retention rate of physicians in public health administration agencies and their career paths in Japan.  BMC Health Services Research 2010, 10:101.
  11. Koike S, Matsumoto S, Kodama T, Ide H, Yasunaga H, Imamura T. Specialty choice and physicians’ career paths in Japan: An analysis of National Physician Survey data from 1996 to 2006.  Health Policy 2010;98:236-244..
  12. Kuwabara K, Matsuda S, Imanaka Y, Fushimi K, Hashimoto H, Ishikawa KB, Horiguchi H, Hayashida K, Fujimori K, Ikeda S, Yasunaga H. Injury Severity Score, resource use, and outcome for trauma patients within a Japanese administrative database.  The Journal of Trauma: Injury, Infection and Critical Care 2010;68(2):463-70.
  13. Matsui H, Hashimoto H, Horiguchi H, Yasunaga H, Matsuda S. An exploration of the association between very early rehabilitation and outcome for the patients with acute ischaemic stroke in Japan: a nationwide retrospective cohort survey.  BMC Health Services Research 2010;10:213.
  14. Naito S, Kakehi Y, Okuyama A, Imamura T, Yasunaga H, Akaza H, Hinotsu S, Arai Y, Dokiya T, Egawa S, Suzuki K, Koga H, Masumori N, Akakura K, Kawashima K, Okihara K, Ito K. Updated Japanese Urological Association Guidelines on prostate-specific antigen-based screening for prostate cancer in 2010.  International Journal of Urology 2010;17(10):830-838.
  15. Ogoshi K, Yasunaga H, Obana N, Ogawa T, Imamura T. Consumer reactions to risk information on bovine spongiform encephalopathy in Japan.  Environ Health Prev Med 2010;15(5):311-318.

[2009]

  1. Yasunaga H. Who wants cancer screening with PET: a contingent valuation survey in Japan.  European Journal of Radiology 2009;70:190–194.
  2. Yasunaga H, Matsuyama Y, Ohe K, The Japan Surgical Society. Effects of hospital and surgeon case-volumes on postoperative complications and length of stay after esophagectomy in Japan.  Surgery Today 2009;39:566-571.
  3. Yasunaga H, Matsuyama Y, Ohe K, The Japan Surgical Society. Effects of hospital and surgeon volumes on operating times, postoperative complications, and length of stay following laparoscopic colectomy.  Surgery Today 2009;39:955–961.
  4. Yasunaga H, Matsuyama Y, Ohe K, The Japan Surgical Society. Volume-Outcome Relationship in Rectal Cancer Surgery: a New Perspective.  Surgery Today 2009;39:663–668.
  5. Yasunaga H, Nishii O, Hirai Y, Ochiai K, Matsuyama Y, Ohe K Impact of Surgeon and Hospital Volumes on Short-Term Postoperative Complications after Radical Hysterectomy for Cervical Cancer.  The Journal of Obstetrics and Gynaecology Research 2009;35(4):699-705.
  6. Yasunaga H, Tsuchiya K, Matsuyama Y, Ohe K High-volume surgeons in regard to reductions in operating time, blood loss, and postoperative complications for total hip arthroplasty.  Journal of Orthopaedic Science 2009;14(1):3-9.
  7. Yasunaga H, Tsuchiya K, Matsuyama Y, Ohe K. Analysis of factors affecting operating time, postoperative complications, and length of stay for total knee arthroplasty: nationwide web-based survey.  Journal of Orthopaedic Science 2009;14(1):10-16.
  8. Hayashida K, Imanaka Y, Otsubo T, Kuwabara K, Koichi B Ishikawa, Fushimi K, Hashimoto H, Yasunaga H, Horiguchi H, Anan M, Fujimori K,Ikeda S, Matsuda S. Development and analysis of a nationwide cost database of acute-care hospitals in Japan.  Journal of Evaluation in Clinical Practice 2009;15(4):626-33.
  9. Ide H, Yasunaga H, Kodama T, Koike S, Taketani Y, Imamura T. The Dynamics of Obstetricians and Gynaecologists in Japan: A Retrospective Cohort Model using the Nationwide Survey of Physicians data.  The Journal of Obstetrics and Gynaecology Research 2009;35(4): 761-766.
  10. Ide H, Yasunaga H, Koike S, Kodama T, Igarashi T, Imamura T. Shortage of Pediatricians in Japan: a Longitudinal Analysis Using Physicians’ Survey Data.  Pediatrics International 2009;51(5):645-9.
  11. Ide H, Koike S, Kodama T, Yasunaga H, Imamura T. The distribution and transitions of physicians in Japan: a 1974–2004 retrospective cohort study.  Human Resources for Health 2009;7:73.
  12. Koike S, Yasunaga H, Matsumoto S, Ide H, Kodama T, Imamura T. A future estimate of physician distribution in hospitals and clinics in Japan.  Health Policy 2009;92: 244-249.
  13. Koike S, Matsumoto S, Kodama T, Ide H, Yasunaga H, Imamura T. Estimation of Future Physician Supply by Specialty and the Distribution Impact of Increasing Female Physicians in Japan: Future Estimation.  BMC Health Service Research 2009；9:180.

[2008]

  1. Yasunaga H. Legal intervention against medical accidents in Japan.  Risk Management and Healthcare Policy 2008;1:39-42.
  2. Yasunaga H. The Catastrophic Collapse of Morale among Hospital Physicians in Japan.  Risk Management and Healthcare Policy 2008;1:1-6.
  3. Yasunaga H. Willingness to pay for mass screening for prostate cancer: a contingent valuation survey.  International Journal of Urology 2008;15:102-5.
  4. Yasunaga H, Imamura T, Yamaki S, Endo H. Computerizing Medical Records in Japan.  International Journal of Medical Infomatics 2008;77:708-713.
  5. Yasunaga H, Matsuyama Y, Ohe K, The Japan Neurosurgical Society. Risk-Adjusted Analyses of the Effects of Hospital and Surgeon Volumes on Postoperative Complications and the Modified Rankin Scale After Clipping of Unruptured Intracranial Aneurysms in Japan.  Neurologia Medico-Chirurgica 2008;48:531-8.
  6. Yasunaga H, Yanaihara H, Fuji K, Matsuyama Y, Deguchi N, Ohe K. Influence of Hospital and Surgeon Volumes on Operative Time, Blood Loss, and Perioperative Complications in Radical Nephrectomy.  International Journal of Urology 2008;15(8):688-693.
  7. Imamura T, Yasunaga H. Economic evaluation of prostate cancer screening with prostate-specific antigen.  International Journal of Urology 2008;15(4):285–288.
  8. Katsumura Y, Yasunaga H, Imamura T, Ohe K, Oyama H. Relationship between risk information on total colonoscopy and patient preferences for colorectal cancer screening options: Analysis using the Analytic Hierarchy Process.  BMC Health Services Research 2008;8:106.

[-2007]

  1. Yasunaga H. Risk of Authoritarianism: Fibrinogen-transmitted Hepatitis C in Japan.  Lancet 2007;370:2063-7.
  2. Yasunaga H, Ide H, Imamura T. Current disparities in the prices of medical materials between Japan and the United States: further investigation of cardiovascular medical devices.  Journal of Cardiology 2007;49:77-81.
  3. Yasunaga H, Ide H, Imamura T, Ohe K. Accuracy of economic studies on surgical site infection.  Journal of Hospital Infection 2007; 65(2): 102-7.
  4. Yasunaga H, Ide H, Imamura T, Ohe K. Price disparity of percutaneous coronary intervention devices in Japan and the United States in 2006.  Circulation Journal 2007;71(7): 1128-30.
  5. Yasunaga H, Ide H, Imamura T, Ohe K. Women’s anxieties caused by false positives in mammography screening: a contingent valuation survey.  Breast Cancer Research and Treatment 2007;101 (1): 59-64.
  6. Ide H, Yasunaga H, Imamura T, Ohe K. Price differences between Japan and the US for medical materials and how to reduce them.  Health Policy 2007;82(1):71-7.
  7. Imamura T, Ide H, Yasunaga H. History of public health crises in Japan.  Journal of Public Health Policy 2007; 28(2): 221-37
  8. Yasunaga H, Ide H, Imamura T, Ohe K. Benefit evaluation of mass screening for prostate cancer: willingness-to-pay measurement using contingent valuation.  Urology 2006;68:1046-50.
  9. Yasunaga H, Ide H, Imamura T, Ohe K. Influence of Japan’s new Diagnosis Procedure Combination-based payment system on the surgical sector: Does it Really Shorten the Hospital Stay?  Surgery Today 2006; 36 (7): 577-85.
  10. Yasunaga H, Ide H, Imamura T, Ohe K. Analysis of factors affecting willingness to pay for cardiovascular disease-related medical services. International Heart Journal 2006; 47(2): 273-286.
  11. Yasunaga H, Ide H, Imamura T, Ohe K. The measurement of willingness to pay for mass cancer screening with whole-body PET (positron emission tomography).  Annals of Nuclear Medicine 2006; 20(7): 457-62.
  12. Yasunaga H, Ide H, Imamura T, Ohe K. Willingness to pay for health care services in common cold, retinal detachment, and myocardiac infarction: an Internet survey in Japan.  BMC Health Services Research 2006; 6: 12.
  13. Yasunaga H, Ide H, Imamura T, Ohe K. Impact of the Japanese Diagnosis Procedure Combination-based payment system on cardiovascular medicine-related costs. International Heart Journal 2005; 46(5): 855-66.