研究業績

2025年

英文論文

• "Steatotic liver index: An interpretable predictor of steatotic liver disease using machine learning with an enhanced shrinkage method"
  Okada A, Oba K, Kimura T, Hagiwara Y, Ono S, Kurakawa KI, Michihata N, Yamauchi T, Nangaku M, Matsuyama Y, Kadowaki T, Yamaguchi S
  Hepatology Research 55, 4, 527-546 (2025).
• "Temporal trends in time toxicity of R-CHOP: a nationwide hospital-based database analysis in Japan"
  Araie H, Seki T, Okada A, Yamauchi T, Nangaku M, Kadowaki T, Ohe K, Yamauchi T, Yamaguchi S
  Support Care Cancer 33, 4, 293 (2025).
• "Children Comorbidity Score, a Simple Predictor for In-hospital Mortality: A Nationwide Inpatient Database Study in Japan"
  Kurakawa KI, Okada A, Konishi T, Michihata N, Ishimaru M, Matsui H, Fushimi K, Yasunaga H, Yamauchi T, Nangaku M, Kadowaki T, Yamaguchi S
  JMA Journal 8, 2, 568-579 (2025).
• "Impact of the COVID-19 pandemic and COVID-19 downgrade on non-COVID-19 respiratory diseases in Japan"
  Yamaguchi S, Okada A, Ono S, Inoue R, Kurakawa KI, Sunaga S, Yamauchi T, Nangaku M, Kadowaki T
  Public Health 243, 105719 (2025).
• "Preoperative rehabilitation and in-hospital mortality in delayed hip fracture surgery: a nationwide cohort study with stratification by kidney function"
  Okada A, Honda A, Yamaguchi S, Inoue R, Kurakawa KI, Yamauchi T, Chikuda H, Kadowaki T, Nangaku M
  BMC Geriatr. 25, 1, 828 (2025).
• "Adherence to physician visits for diabetes care and cardiovascular disease risk: A retrospective cohort study using an administrative claims database"
  Okada A, Otsuka Y, Inoue R, Hashimoto Y, Kurakawa KI, Yasunaga H, Nangaku M, Yamauchi T, Yamaguchi S, Kadowaki T
  Diabetes Obes Metab 27, 8, 4590-3 (2025).
• "Allopurinol Versus Febuxostat Use and the Risk of Cardiovascular Disease in People With Chronic Kidney Disease: A New-User Active Comparator Cohort Study"
  Inoue R, Yamaguchi S, Okada A, Yamauchi T, Kadowaki T, Nangaku M
  Nephrology (Carlton) 30, 11, e70149 (2025).
• "Impact of the COVID-19 Pandemic on Health Check-ups before and after the COVID-19 Downgrade and Employees' Mental Health at Health Check-up Facilities: The Third Nationwide Survey of Healthcare Facilities in Japan Society of Ningen Dock and Preventive Medical Care"
  Yamaguchi S, Atarashi T, Okada A, Inoue R, Nasu S, Yamauchi T, Arase Y, Aizawa T, Nangaku M, Kadowaki T
  JMA J 8, 3, 911-24 (2025).
• "Relative survival among cancer survivors enrolled in private cancer insurance in Japan, using the internal insurance-enrolled population as the reference"
  Hiraoka M, Uekusa H, Okada A, Inoue R, Ikeda-Kurakawa K, Otsuka Y, Namiki D, Yamamoto R, Yamauchi T, Nangaku M, Ohe K, Yamaguchi S, Kadowaki T
  Int J Clin Oncol 30, 11, 2178-2191 (2025).

2024年

英文論文

• "Proteinuria screening and risk of bone fracture: a retrospective cohort study using a nationwide population-based database"
  Okada A, Honda A, Watanabe H, Sasabuchi Y, Aso S, Kurakawa KI, Nangaku M, Yamauchi T, Yasunaga H, Chikuda H, Kadowaki T, Yamaguchi S
  Clin Kidney J 17, 1, sfad302 (2024).
• "Modification Effects of Albuminuria on the Association Between Kidney Function and Development of Anemia in Diabetes"
  Okada A, Yamaguchi S, Imaizumi T, Oba K, Kurakawa KI, Yamauchi T, Kadowaki T, Nangaku M
  J Clin Endocrinol Metab 109, 4, 1012-32 (2024).
• "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"
  Okada A, Yamaguchi S, Ono S, Kurakawa KI, Yasunaga H, Nangaku M, Yamauchi T, Kadowaki T
  J Diabetes Investig 15, 7, 953-63 (2024).
• "Impact of the COVID-19 Pandemic on Health Check-ups in 2021 and 2022: A Nationwide Follow-up Survey of Healthcare Facilities in Japan Society of Ningen Dock"
  Yamaguchi S, Atarashi T, Okada A, Nasu S, Yamauchi T, Arase Y, Aizawa T, Nangaku M, Kadowaki T
  JMA J 7, 1, 94-105 (2024).
• "Diagnostic validity and solute-corrected prevalence for hyponatremia and hypernatremia among 1 813 356 admissions"
  Okada A, Yamana H, Watanabe H, Manaka K, Ono S, Kurakawa KI, Nishikawa M, Kurano M, Inoue R, Yasunaga H, Yamauchi T, Kadowaki T, Yamaguchi S, Nangaku M
  Clin Kidney J 17, 12, sfae319 (2024).
• "Adding biomarker change information to the kidney failure risk equation improves predictive ability for dialysis dependency in eGFR <30 ml/min/1.73 m²"
  Okada A, Aso S, Kurakawa KI, Inoue R, Watanabe H, Sasabuchi Y, Yamauchi T, Yasunaga H, Kadowaki T, Yamaguchi S, Nangaku M
  Clin Kidney J 17, 11, sfae321 (2024).

2023年

英文論文

• "Impact of the COVID-19 Pandemic on Health Check-ups: A Nationwide Questionnaire Survey in 639 Healthcare Facilities in Japan Society of Ningen Dock"
  Yamaguchi S, Atarashi T, Okada A, Nasu S, Yamauchi T, Arase Y, Aizawa T, Nangaku M, Kadowaki T
  JMA J 6, 3, 321-31 (2023).
• "Effect modification of the association between temperature variability and hospitalization for cardiovascular disease by comorbid diabetes mellitus: A nationwide time-stratified case-crossover analysis"
  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
  Diabetes Res Clin Pract 202, 110771 (2023).
• "Comparison of bleeding complications after pediatric kidney biopsy between intravenous sedation and general anesthesia: a nationwide cohort study"
  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
  BMC Pediatr 23, 1, 33 (2023).
• "Diagnostic ability using fatty liver and metabolic markers for metabolic-associated fatty liver disease stratified by metabolic/glycemic abnormalities"
  Okada A, Yamada G, Kimura T, Hagiwara Y, Yamaguchi S, Kurakawa KI, Nangaku M, Yamauchi T, Matsuyama Y, Kadowaki T
  J Diabetes Investig 14, 3, 463-78 (2023).

2022年

英文論文

• "Effect of Branched-Chain Amino Acid Infusion on In-Hospital Mortality of Patients With Hepatic Encephalopathy and End-Stage Kidney Disease: A Retrospective Cohort Study Using a National Inpatient Database"
  Okada A, Yamana H, Yamaguchi S, Kurakawa KI, Michihata N, Matsui H, Fushimi K, Nangaku M, Yamauchi T, Yasunaga H, Kadowaki T
  J Ren Nutr 32, 4, 432-440 (2022).
• "Impact of body mass index on in-hospital mortality in older patients hospitalized for bacterial pneumonia with non-dialysis-dependent chronic kidney disease"
  Okada A, Yamaguchi S, Jo T, Yokota I, Ono S, Ikeda Kurakawa K, Nangaku M, Yamauchi T, Kadowaki T
  BMC Geriatr 22, 1, 950 (2022).
• "Impact of COVID-19 pandemic on healthcare service use for non-COVID-19 patients in Japan: retrospective cohort study"
  Yamaguchi S, Okada A, Sunaga S, Ikeda Kurakawa K, Yamauchi T, Nangaku M, Kadowaki T
  BMJ Open 12, 4, e060390 (2022).
• "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"
  Okada A, Hashimoto Y, Goto T, Yamaguchi S, Ono S, Ikeda Kurakawa K, Nangaku M, Yamauchi T, Yasunaga H, Kadowaki T
  Diabetes Care 45, 6, 1346-1354 (2022).
• "Major complications after percutaneous biopsy of native or transplanted liver in pediatric patients: a nationwide inpatient database study in Japan"
  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
  BMC Gastroenterol 22, 1, 395 (2022).
• "Prevalence of Noncommunicable Diseases in Japan Using a Newly Developed Administrative Claims Database Covering Young, Middle-aged, and Elderly People"
  Okada A, Yasunaga H
  JMA J 5, 2, 190-8 (2022).

2021年

英文論文

• "Potassium concentration in initial fluid therapy and in-hospital mortality of patients with diabetic ketoacidosis"
  Okada A, Yamana H, Morita K, Sato Y, Yamaguchi S, Kurakawa KI, Michihata N, Matsui H, Fushimi K, Nangaku M, Toshimasa Y, Yasunaga H, Kadowaki T
  J Clin Endocrinol Metab (2021).
• "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"
  Okada A, Ono S, Yamaguchi S, Yamana H, Ikeda Kurakawa K, Michihata N, Matsui H, Nangaku M, Yamauchi T, Yasunaga H, Kadowaki T
  J Diabetes Investig (2021).
• "Clinical characteristics and incidences of benign and malignant insulinoma using a national inpatient database in Japan"
  Kurakawa KI, 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
  J Clin Endocrinol Metab (2021).
• "Factors associated with long-term care certification in older adults: a cross-sectional study based on a nationally representative survey in Japan"
  Momose A, Yamaguchi S, Okada A, Ikeda-Kurakawa K, Namiki D, Nannya Y, Kato H, Yamauchi T, Nangaku M, Kadowaki T
  BMC Geriatr 21, 1, 374 (2021).

2020年

英文論文

• "Effects of Prophylactic Antibiotics on Length of Stay and Total Costs for Pediatric Acute Pancreatitis: A Nationwide Database Study in Japan"
  Ikeda Kurakawa K, Okada A, Jo T, Ono S, Bessho K, Michihata N, Matsui H, Yamaguchi S, Fushimi K, Kadowaki T, Yasunaga H
  Pancreas 49, 10, 1321-6 (2020).
• "Outcomes of lactulose plus branched-chain amino acid infusion and lactulose alone for hepatic encephalopathy: A retrospective cohort study using a national inpatient database"
  Okada A, Yamana H, Yamaguchi S, Ikeda Kurakawa K, Matsui H, Fushimi K, Nangaku M, Kadowaki T, Yasunaga H
  Hepatol Res 50, 6, 693-703 (2020).