Department of Health Policy and Management

Research Output

Effect of procedural volume on outcome of coronary artery bypass graft surgery in Japan: Implication toward public reporting and minimal volume standards

Miyata, H., Motomura, N., Ueda, Y., Matsuda, H. & Takamoto, S., 2008 Jun, In : Journal of Thoracic and Cardiovascular Surgery. 135, 6, p. 1306-1312 7 p.

Research output: Contribution to journalArticle

39 Citations (Scopus)
19 Citations (Scopus)
8 Citations (Scopus)

Effects of body habitus on contrast-induced acute kidney injury after percutaneous coronary intervention

Kuno, T., Numasawa, Y., Sawano, M., Katsuki, T., Kodaira, M., Ueda, I., Suzuki, M., Noma, S., Negishi, K., Ishikawa, S., Miyata, H., Fukuda, K. & Kohsaka, S., 2018 Sep, In : PloS one. 13, 9, e0203352.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Effects of body mass index (BMI) on surgical outcomes: a nationwide survey using a Japanese web-based database

Ri, M., Miyata, H., Aikou, S., Seto, Y., Akazawa, K., Takeuchi, M., Matsui, Y., Konno, H., Gotoh, M., Mori, M., Motomura, N., Takamoto, S., Sawa, Y., Kuwano, H. & Kokudo, N., 2015 Oct 14, In : Surgery today. 45, 10, p. 1271-1279 9 p.

Research output: Contribution to journalArticle

25 Citations (Scopus)

Emergency surgery for gastrointestinal cancer: A nationwide study in Japan based on the National Clinical Database

Hoshino, N., Endo, H., Hida, K., Ichihara, N., Takahashi, Y., Hasegawa, H., Kimura, T., Kitagawa, Y., Kakeji, Y., Miyata, H., Nakayama, T. & Sakai, Y., 2020, (Accepted/In press) In : Annals of Gastroenterological Surgery.

Research output: Contribution to journalArticle

Open Access

End-of-life preferences of the general public: Results from a Japanese national survey

Kissane, L. A., Ikeda, B., Akizuki, R., Nozaki, S., Yoshimura, K. & Ikegami, N., 2014 Jul 21, (Accepted/In press) In : Health Policy.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Establishment of a method to detect microalbuminuria by measuring the total urinary protein-to-creatinine ratio in diabetic patients.

Yamamoto, K., Komatsu, Y., Yamamoto, H., Izumo, H., Sanoyama, K., Monden, M., Takeda, K., Nakahara, F. & Yoshida, K., 2011, In : The Tohoku journal of experimental medicine. 225, 3, p. 195-202 8 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Estimating an EQ-5D population value set: The case of Japan

Tsuchiya, A., Ikeda, S., Ikegami, N., Nishimura, S., Sakai, I., Fukuda, T., Hamashima, C., Hisashige, A. & Tamura, M., 2002, In : Health Economics. 11, 4, p. 341-353 13 p.

Research output: Contribution to journalArticle

322 Citations (Scopus)

Evaluating the quality of data from the Japanese National Clinical Database 2011 via a comparison with regional government report data and medical charts

Tomotaki, A., Kumamaru, H., Hashimoto, H., Takahashi, A., Ono, M., Iwanaka, T. & Miyata, H., 2019 Jan 1, In : Surgery today. 49, 1, p. 65-71 7 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)

Feasibility of laparoscopic gastrectomy for patients with poor physical status: a retrospective cohort study based on a nationwide registry database in Japan

Inokuchi, M., Kumamaru, H., Nakagawa, M., Miyata, H., Kakeji, Y., Seto, Y. & Kojima, K., 2020 Mar 1, In : Gastric Cancer. 23, 2, p. 310-318 9 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

First Database Comparison Between the United States and Japan: Coronary Artery Bypass Grafting

Nawata, K., D'Agostino, R. S., Habib, R. H., Kumamaru, H., Hirahara, N., Miyata, H., Motomura, N., Takamoto, S., Shahian, D. M. & Grover, F. L., 2020 Apr, In : Annals of Thoracic Surgery. 109, 4, p. 1159-1164 6 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

First Report on 30-day and Operative Mortality in Risk Model of Isolated Coronary Artery Bypass Grafting in Japan

Motomura, N., Miyata, H., Tsukihara, H., Okada, M. & Takamoto, S., 2008 Dec, In : Annals of Thoracic Surgery. 86, 6, p. 1866-1872 7 p.

Research output: Contribution to journalArticle

51 Citations (Scopus)

Frequency and risk factors for venous thromboembolism after gastroenterological surgery based on the Japanese National Clinical Database (516 217 cases)

Hata, T., Ikeda, M., Miyata, H., Nomura, M., Gotoh, M., Sakon, M., Yamamoto, K., Wakabayashi, G., Seto, Y., Mori, M. & Doki, Y., 2019 Sep 1, In : Annals of Gastroenterological Surgery. 3, 5, p. 534-543 10 p.

Research output: Contribution to journalArticle

Open Access
1 Citation (Scopus)

Future of Japan's system of good health at low cost with equity: Beyond universal coverage

Shibuya, K., Hashimoto, H., Ikegami, N., Nishi, A., Tanimoto, T., Miyata, H., Takemi, K. & Reich, M. R., 2011, In : The Lancet. 378, 9798, p. 1265-1273 9 p.

Research output: Contribution to journalReview article

71 Citations (Scopus)

Games policy makers and providers play: Introducing case-mix-based payment to hospital chronic care units in Japan

Ikegami, N., 2009 Jun 1, In : Journal of Health Politics, Policy and Law. 34, 3, p. 361-380 20 p.

Research output: Contribution to journalArticle

13 Citations (Scopus)

Gender differences in in-hospital clinical outcomes after percutaneous coronary interventions: An insight from a Japanese multicenter registry

Numasawa, Y., Kohsaka, S., Miyata, H., Noma, S., Suzuki, M., Ishikawa, S., Nakamura, I., Nishi, Y., Ohki, T., Negishi, K., Takahashi, T. & Fukuda, K., 2015 Jan 30, In : PloS one. 10, 1, e0116496.

Research output: Contribution to journalArticle

13 Citations (Scopus)

General Thoracic and Cardiovascular Surgery: Editorial

Takamoto, S. & Miyata, H., 2007 Dec, In : General thoracic and cardiovascular surgery. 55, 12, p. 481-482 2 p.

Research output: Contribution to journalEditorial

Genetic variation in PSCA is associated with susceptibility to diffuse-type gastric cancer

Sakamoto, H., Yoshimura, K., Saeki, N., Katai, H., Shimoda, T., Matsuno, Y., Saito, D., Sugimura, H., Tanioka, F., Kato, S., Matsukura, N., Matsuda, N., Nakamura, T., Hyodo, I., Nishina, T., Yasui, W., Hirose, H., Hayashi, M., Toshiro, E., Ohnami, S. & 23 others, Sekine, A., Sato, Y., Totsuka, H., Ando, M., Takemura, R., Takahashi, Y., Ohdaira, M., Aoki, K., Honmyo, I., Chiku, S., Aoyagi, K., Sasaki, H., Ohnami, S., Yanagihara, K., Yoon, K. A., Kook, M. C., Lee, Y. S., Park, S. R., Kim, C. G., Choi, I. J., Yoshida, T., Nakamura, Y. & Hirohashi, S., 2008 Jun, In : Nature genetics. 40, 6, p. 730-740 11 p.

Research output: Contribution to journalArticle

300 Citations (Scopus)

Growing old in Japan

Ikegami, N., 1998 Jan 1, In : Age and Ageing. 27, 3, p. 277-278 2 p.

Research output: Contribution to journalShort survey

4 Citations (Scopus)

Growth of psychiatric beds in Japan

Ikegami, N., 1980 Dec, In : Social Science and Medicine. Part A Medical Psychology and Medical. 14, 6, p. 561-570 10 p.

Research output: Contribution to journalArticle

12 Citations (Scopus)

Heading in the right direction.

Fries, B. E. & Ikegami, N., 1994 Oct, In : Gerontologist. 34, 5, p. 582-583 2 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Health care reform in japan: The virtues of muddling through

Ikegami, N. & Campbell, J. C., 1999 Dec 1, In : Health Affairs. 18, 3, p. 56-75 20 p.

Research output: Contribution to journalArticle

65 Citations (Scopus)

Health care systems in transition II, Japan, Part I. An overview of the Japanese health care systems

Arai, Y. & Ikegami, N., 1998 Mar, In : Journal of Public Health Medicine. 20, 1, p. 29-33 5 p.

Research output: Contribution to journalArticle

17 Citations (Scopus)

Health care without managed care in Japan.

Ikegami, N., 1995 Oct, In : Health care management (Philadelphia, Pa.). 2, 1, p. 211-219 9 p.

Research output: Contribution to journalArticle

Higher incidence of pancreatic fistula in laparoscopic gastrectomy. Real-world evidence from a nationwide prospective cohort study

Hiki, N., Honda, M., Etoh, T., Yoshida, K., Kodera, Y., Kakeji, Y., Kumamaru, H., Miyata, H., Yamashita, Y., Inomata, M., Konno, H., Seto, Y. & Kitano, S., 2018 Jan 1, In : Gastric Cancer. 21, 1, p. 162-170 9 p.

Research output: Contribution to journalArticle

25 Citations (Scopus)

High prevalence of anxiety and depression in patients with primary open-angle glaucoma

Mabuchi, F., Yoshimura, K., Kashiwagi, K., Shioe, K., Yamagata, Z., Kanba, S., Iijima, H. & Tsukahara, S., 2008 Oct, In : Journal of Glaucoma. 17, 7, p. 552-557 6 p.

Research output: Contribution to journalArticle

83 Citations (Scopus)

His595Tyr Polymorphism in the Methionine Synthase Reductase (MTRR) Gene Is Associated With Pancreatic Cancer Risk

Ohnami, S., Sato, Y., Yoshimura, K., Ohnami, S., Sakamoto, H., Aoki, K., Ueno, H., Ikeda, M., Morizane, C., Shimada, K., Sakamoto, Y., Esaki, M., Saito, I., Hirose, H., Saito, D., Sugimura, H., Kosuge, T., Okusaka, T. & Yoshida, T., 2008 Aug, In : Gastroenterology. 135, 2, p. 477-488.e3

Research output: Contribution to journalArticle

15 Citations (Scopus)

Home care quality indicators (HCQIs) based on the MDS-HC

Hirdes, J. P., Fries, B. E., Morris, J. N., Ikegami, N., Zimmerman, D., Dalby, D. M., Aliaga, P., Hammer, S. & Jones, R., 2004 Oct, In : Gerontologist. 44, 5, p. 665-679 15 p.

Research output: Contribution to journalArticle

Open Access
93 Citations (Scopus)

Impact of a board certification system and implementation of clinical practice guidelines for pancreatic cancer on mortality of pancreaticoduodenectomy

Mizuma, M., Yamamoto, H., Miyata, H., Gotoh, M., Unno, M., Shimosegawa, T., Toh, Y., Kakeji, Y. & Seto, Y., 2020, (Accepted/In press) In : Surgery today.

Research output: Contribution to journalArticle

Open Access
1 Citation (Scopus)

Impact of adherence to board-certified surgeon systems and clinical practice guidelines on colon cancer surgical outcomes in Japan: A questionnaire survey of the National Clinical Database

Kobayashi, H., Yamamoto, H., Miyata, H., Gotoh, M., Kotake, K., Sugihara, K., Toh, Y., Kakeji, Y. & Seto, Y., 2020 May 1, In : Annals of Gastroenterological Surgery. 4, 3, p. 283-293 11 p.

Research output: Contribution to journalArticle

Open Access
2 Citations (Scopus)

Impact of body mass index on in-hospital complications in patients undergoing percutaneous coronary intervention in a Japanese real-world multicenter registry

Numasawa, Y., Kohsaka, S., Miyata, H., Kawamura, A., Noma, S., Suzuki, M., Nakagawa, S., Momiyama, Y., Naito, K. & Fukuda, K., 2015 Apr 14, In : PloS one. 10, 4, e0124399.

Research output: Contribution to journalArticle

30 Citations (Scopus)

Impact of catheter-induced iatrogenic coronary artery dissection with or without postprocedural flow impairment: A report from a Japanese multicenter percutaneous coronary intervention registry

Hiraide, T., Sawano, M., Shiraishi, Y., Ueda, I., Numasawa, Y., Noma, S., Negishi, K., Ohki, T., Yuasa, S., Hayashida, K., Miyata, H., Fukuda, K. & Kohsaka, S., 2018 Sep, In : PloS one. 13, 9, e0204333.

Research output: Contribution to journalArticle

7 Citations (Scopus)

Impact of certification status of the institute and surgeon on short-term outcomes after surgery for thoracic esophageal cancer: evaluation using data on 16,752 patients from the National Clinical Database in Japan

Motoyama, S., Yamamoto, H., Miyata, H., Yano, M., Yasuda, T., Ohira, M., Kajiyama, Y., Toh, Y., Watanabe, M., Kakeji, Y., Seto, Y., Doki, Y. & Matsubara, H., 2020 Jan 1, In : Esophagus. 17, 1, p. 41-49 9 p.

Research output: Contribution to journalArticle

Open Access
3 Citations (Scopus)

Impact of Coronary Dominance on In-Hospital Outcomes after Percutaneous Coronary Intervention in Patients with Acute Coronary Syndrome

Kuno, T., Numasawa, Y., Miyata, H., Takahashi, T., Sueyoshi, K., Ohki, T., Negishi, K., Kawamura, A., Kohsaka, S. & Fukuda, K., 2013 Aug 26, In : PloS one. 8, 8, e72672.

Research output: Contribution to journalArticle

16 Citations (Scopus)

Impact of dementia on cancer discovery and pain

Iritani, S., Tohgi, M., Miyata, H. & Ohi, G., 2011 Mar, In : Psychogeriatrics. 11, 1, p. 6-13 8 p.

Research output: Contribution to journalArticle

9 Citations (Scopus)
34 Citations (Scopus)

Impact of Institutional and Operator Volume on Short-Term Outcomes of Percutaneous Coronary Intervention: A Report From the Japanese Nationwide Registry

Inohara, T., Kohsaka, S., Yamaji, K., Amano, T., Fujii, K., Oda, H., Uemura, S., Kadota, K., Miyata, H., Nakamura, M., Inohara, T., Kohsaka, S., Yamaji, K., Amano, T., Fujii, K., Oda, H., Uemura, S., Kadota, K., Miyata, H., Nakamura, M. & 25 others, Kadota, K., Shiode, N., Tanaka, N., Amano, T., Uemura, S., Akasaka, T., Morino, Y., Fujii, K., Hikichi, H., Amano, T., Fujii, K., Kohsaka, S., Ishii, H., Tanabe, K., Ozaki, Y., Sumitsuji, S., Iida, O., Hara, H., Takashima, H., Shirai, S., Nansato, M., Inohara, T., Ueda, Y., Numasawa, Y. & Noma, S., 2017 May 8, In : JACC: Cardiovascular Interventions. 10, 9, p. 918-927 10 p.

Research output: Contribution to journalArticle

24 Citations (Scopus)

Impact of periprocedural bleeding on incidence of contrast-induced acute kidney injury in patients treated with percutaneous coronary intervention

Ohno, Y., Maekawa, Y., Miyata, H., Inoue, S., Ishikawa, S., Sueyoshi, K., Noma, S., Kawamura, A., Kohsaka, S. & Fukuda, K., 2013 Oct 1, In : Journal of the American College of Cardiology. 62, 14, p. 1260-1266 7 p.

Research output: Contribution to journalArticle

83 Citations (Scopus)

Impact of remifentanil introduction on practice patterns in general anesthesia

Uchida, K., Yasunaga, H., Miyata, H., Sumitani, M., Horiguchi, H., Kuwajima, K., Matsuda, S. & Yamada, Y., 2011 Dec, In : Journal of Anesthesia. 25, 6, p. 864-871 8 p.

Research output: Contribution to journalArticle

9 Citations (Scopus)

Impact of remifentanil use on early postoperative outcomes following brain tumor resection or rectal cancer surgery

Uchida, K., Yasunaga, H., Miyata, H., Sumitani, M., Horiguchi, H., Matsuda, S. & Yamada, Y., 2012 Oct, In : Journal of Anesthesia. 26, 5, p. 711-720 10 p.

Research output: Contribution to journalArticle

9 Citations (Scopus)

Improving the quality of healthcare in Japan: A systematic review of procedural volume and outcome literature

Miyata, H., Motomura, N., Kondo, J., Takamoto, S. & Hasegawa, T., 2007, In : BioScience Trends. 1, 2, p. 81-89 9 p.

Research output: Contribution to journalReview article

9 Citations (Scopus)

Incidence and risk factors of postoperative delirium in patients with esophageal cancer

Takeuchi, M., Takeuchi, H., Fujisawa, D., Miyajima, K., Yoshimura, K., Hashiguchi, S., Ozawa, S., Ando, N., Shirahase, J., Kitagawa, Y. & Mimura, M., 2012 Nov 1, In : Annals of Surgical Oncology. 19, 12, p. 3963-3970 8 p.

Research output: Contribution to journalArticle

57 Citations (Scopus)

Incidence of and risk factors for newly diagnosed hyperkalemia after hospital discharge in non-dialysis-dependent CKD patients treated with RAS inhibitors

Saito, Y., Yamamoto, H., Nakajima, H., Takahashi, O. & Komatsu, Y., 2017 Sep, In : PloS one. 12, 9, e0184402.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Incidence of periprocedural myocardial infarction and cardiac biomarker testing after percutaneous coronary intervention in Japan: Results from a multicenter registry

Arai, T., Yuasa, S., Miyata, H., Kawamura, A., Maekawa, Y., Ishikawa, S., Noma, S., Inoue, S., Sato, Y., Kohsaka, S. & Fukuda, K., 2013 Nov, In : Heart and vessels. 28, 6, p. 714-719 6 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)

Increase in health care costs due to technological diffusion in diagnostic tests and diagnostic imaging.

Ikegami, N. & Ikeda, S., 1996 Jul 1, In : Japan-hospitals : the journal of the Japan Hospital Association. 15, p. 15-23 9 p.

Research output: Contribution to journalArticle

Influence of patient characteristics on care time in patients hospitalized with schizophrenia

Sugibayashi, Y., Yoshimura, K., Yamauchi, K., Inagaki, A. & Ikegami, N., 2014 Aug 25, In : Neuropsychiatric Disease and Treatment. 10, p. 1577-1584 8 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Influence of Timing After Thoracic Endovascular Aortic Repair for Acute Type B Aortic Dissection

Japan Adult Cardiovascular Database Organization, 2018 May, In : Annals of Thoracic Surgery. 105, 5, p. 1392-1396 5 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Information barriers to the implementation of economic evaluations in Japan

Nishimura, S., Torrance, G. W., Ikegami, N., Fukuhara, S., Drummond, M. & Schubert, F., 2002 Jan 1, In : PharmacoEconomics. 20, SUPPL. 2, p. 9-15 7 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)