| Risk factors of serious postoperative complications after pancreaticoduodenectomy and risk calculators for predicting postoperative complications: a nationwide study of 17,564 … S Aoki, H Miyata, H Konno, M Gotoh, F Motoi, H Kumamaru, ... Journal of Hepato‐biliary‐pancreatic Sciences 24 (5), 243-251, 2017 | 185 | 2017 |
| Validity of claims-based stroke algorithms in contemporary Medicare data: reasons for geographic and racial differences in stroke (REGARDS) study linked with medicare claims H Kumamaru, SE Judd, JR Curtis, R Ramachandran, NC Hardy, ... Circulation: Cardiovascular Quality and Outcomes 7 (4), 611-619, 2014 | 133 | 2014 |
| Introducing laparoscopic total gastrectomy for gastric cancer in general practice: a retrospective cohort study based on a nationwide registry database in Japan Y Kodera, K Yoshida, H Kumamaru, Y Kakeji, N Hiki, T Etoh, M Honda, ... Gastric Cancer, 1-12, 2018 | 126 | 2018 |
| Effectiveness and outcome of pulmonary arterial hypertension-specific therapy in Japanese patients with pulmonary arterial hypertension Y Tamura, H Kumamaru, T Satoh, H Miyata, A Ogawa, N Tanabe, ... Circulation Journal 82 (1), 275-282, 2017 | 97 | 2017 |
| Outcomes after carotid artery stenting in Medicare beneficiaries, 2005 to 2009 JJ Jalbert, LL Nguyen, MD Gerhard-Herman, MR Jaff, CJ White, ... JAMA neurology 72 (3), 276-286, 2015 | 93 | 2015 |
| Young adult breast cancer patients have a poor prognosis independent of prognostic clinicopathological factors: a study from the Japanese Breast Cancer Registry A Kataoka, T Iwamoto, E Tokunaga, A Tomotaki, H Kumamaru, H Miyata, ... Breast cancer research and treatment 160 (1), 163-172, 2016 | 87 | 2016 |
| Surgical outcomes of laparoscopic distal gastrectomy compared to open distal gastrectomy: A retrospective cohort study based on a nationwide registry database in Japan K Yoshida, M Honda, H Kumamaru, Y Kodera, Y Kakeji, N Hiki, T Etoh, ... Annals of gastroenterological surgery 2 (1), 55-64, 2018 | 84 | 2018 |
| Morbidity and mortality from a propensity score-matched, prospective cohort study of laparoscopic versus open total gastrectomy for gastric cancer: data from a nationwide web … T Etoh, M Honda, H Kumamaru, H Miyata, K Yoshida, Y Kodera, Y Kakeji, ... Surgical endoscopy, 1-8, 2017 | 78 | 2017 |
| Causes of death and mortality and evaluation of prognostic factors in patients with severe aortic stenosis in an aging society S Miura, T Arita, H Kumamaru, T Domei, K Yamaji, Y Soga, S Shirai, ... Journal of cardiology 65 (5), 353-359, 2015 | 46 | 2015 |
| Surgeon case volume and 30-day mortality after carotid endarterectomy among contemporary medicare beneficiaries: before and after national coverage determination for carotid … H Kumamaru, JJ Jalbert, LL Nguyen, MD Gerhard-Herman, LA Williams, ... Stroke 46 (5), 1288-1294, 2015 | 45 | 2015 |
| The association of hospital volume with mortality and costs of care for stroke in Japan Y Tsugawa, H Kumamaru, H Yasunaga, H Hashimoto, H Horiguchi, ... Medical care 51 (9), 782-788, 2013 | 37 | 2013 |
| Evaluating the quality of data from the Japanese National Clinical Database 2011 via a comparison with regional government report data and medical charts A Tomotaki, H Kumamaru, H Hashimoto, A Takahashi, M Ono, T Iwanaka, ... Surgery today, 1-7, 2018 | 33 | 2018 |
| Comparative effectiveness of carotid artery stenting versus carotid endarterectomy among Medicare beneficiaries JJ Jalbert, LL Nguyen, MD Gerhard-Herman, H Kumamaru, CY Chen, ... Circulation: Cardiovascular Quality and Outcomes 9 (3), 275-285, 2016 | 33 | 2016 |
| Correlation between early direct communication of positive CT pulmonary angiography findings and improved clinical outcomes KK Kumamaru, AR Hunsaker, H Kumamaru, E George, A Bedayat, ... Chest 144 (5), 1546-1554, 2013 | 31 | 2013 |
| Relationship between physician and hospital procedure volume and mortality after carotid artery stenting among Medicare beneficiaries JJ Jalbert, MD Gerhard-Herman, LL Nguyen, MR Jaff, H Kumamaru, ... Circulation: Cardiovascular Quality and Outcomes 8 (6_suppl_3), S81-S89, 2015 | 29 | 2015 |
| Dimension reduction and shrinkage methods for high dimensional disease risk scores in historical data H Kumamaru, S Schneeweiss, RJ Glynn, S Setoguchi, JJ Gagne Emerging themes in epidemiology 13 (1), 5, 2016 | 27 | 2016 |
| The impact of pediatrician supply on child health outcomes: longitudinal evidence from Japan R Sakai, G Fink, H Kumamaru, I Kawachi Health services research 51 (2), 530-549, 2016 | 25 | 2016 |
| Learning Curve for Transcatheter Aortic Valve Implantation Under a Controlled Introduction System―Initial Analysis of a Japanese Nationwide Registry― N Handa, H Kumamaru, K Torikai, S Kohsaka, M Takayama, J Kobayashi, ... Circulation Journal, CJ-18-0211, 2018 | 24 | 2018 |
| Comparison of high-dimensional confounder summary scores in comparative studies of newly marketed medications H Kumamaru, JJ Gagne, RJ Glynn, S Setoguchi, S Schneeweiss Journal of clinical epidemiology 76, 200-208, 2016 | 24 | 2016 |
| Role of postmastectomy radiotherapy after neoadjuvant chemotherapy in breast cancer patients: A study from the Japanese breast cancer registry M Miyashita, N Niikura, H Kumamaru, H Miyata, T Ishida, T Kinoshita, ... CANCER RESEARCH 78 (4), 2018 | 22 | 2018 |
