Department of Health Policy and Management

Research Output

2008
62 Citations (Scopus)

Utility-based evaluation of the quality of life of patient's with gastric cancer who receive chemotherapy: Comparison of patients' quality of life between oral TS-1 and conventional injectable combination therapy

Shimizu, H., Tanaka, K., Ikeda, S., Sakamaki, H., Yajima, S., Ikegami, N. & Murayama, J. I., 2008 May 1, In : Yakugaku Zasshi. 128, 5, p. 783-793 11 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)
2007

The Japanese health care system--Achieving equity and containing costs through a single payment system.

Ikegami, N., 2007 Jan 1, In : The American heart hospital journal. 5, 1, p. 27-31 5 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)
2006

Advanced Asia's health systems in comparison

Gauld, R., Ikegami, N., Barr, M. D., Chiang, T. L., Gould, D. & Kwon, S., 2006 Dec 1, In : Health Policy. 79, 2-3, p. 325-336 12 p.

Research output: Contribution to journalArticle

28 Citations (Scopus)

Clinical and behavioral impact of implementing community-based diabetes disease management in Japan

Sakamaki, H., Ikeda, S., Ikegami, N., Norimoto, M. & Moriwaki, S., 2006 Feb 21, In : Disease Management and Health Outcomes. 14, 1, p. 45-54 10 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Comparison of health costs associated with treatment of hypertension with a calcium channel blocker and angiotensin-converting enzyme inhibitor in the United States and Japan

Sakamaki, Y., Sasamura, H., Ikeda, S., Ikegami, N. & Saruta, T., 2006 May 1, In : Hypertension Research. 29, 5, p. 333-338 6 p.

Research output: Contribution to journalArticle

8 Citations (Scopus)

Measurement of HRQL using EQ-5D in patients with type 2 diabetes mellitus in Japan

Sakamaki, H., Ikeda, S., Ikegami, N., Uchigata, Y., Iwamoto, Y., Origasa, H., Otani, T. & Otani, Y., 2006 Jan, In : Value in Health. 9, 1, p. 47-53 7 p.

Research output: Contribution to journalArticle

64 Citations (Scopus)

Prevalence of inappropriate medication using Beers criteria in Japanese long-term care facilities

Niwata, S., Yamada, Y. & Ikegami, N., 2006 Jan 11, In : BMC Geriatrics. 6, 1.

Research output: Contribution to journalArticle

58 Citations (Scopus)

Registry of adolescent and young adult twins in the Tokyo area

Shikishima, C., Ando, J., Ono, Y., Toda, T. & Yoshimura, K., 2006 Dec 1, In : Twin Research and Human Genetics. 9, 6, p. 811-816 6 p.

Research output: Contribution to journalReview article

18 Citations (Scopus)

Should providers be allowed to extra bill for uncovered services? Debate, resolution, and sequel in Japan

Ikegami, N., 2006 Dec 1, In : Journal of Health Politics, Policy and Law. 31, 6, p. 1129-1149 21 p.

Research output: Contribution to journalReview article

13 Citations (Scopus)

The diffusion of medical technology, local conditions, and technology re-invention: A comparative case study on coronary stenting

Hashimoto, H., Noguchi, H., Heidenreich, P., Saynina, O., Moreland, A., Miyazaki, S., Ikeda, S., Kaneko, Y. & Ikegami, N., 2006 Dec 1, In : Health Policy. 79, 2-3, p. 221-230 10 p.

Research output: Contribution to journalArticle

20 Citations (Scopus)
2005

A full genome scan for gastric cancer

Aoki, M., Yamamura, Y., Noshiro, H., Sakai, K., Yokota, J., Kohno, T., Tokino, T., Ishida, S., Ohyama, S., Ninomiya, I., Uesaka, K., Kitajima, M., Shimada, S., Matsuno, S., Yano, M., Hiratsuka, M., Sugimura, H., Itoh, F., Minamoto, T., Maehara, Y. & 9 others, Takenoshita, S., Aikou, T., Katai, H., Yoshimura, K., Takahashi, T., Akagi, K., Sairenji, M., Yamamoto, K. & Sasazuki, T., 2005 Jan, In : Journal of medical genetics. 42, 1, p. 83-87 5 p.

Research output: Contribution to journalArticle

12 Citations (Scopus)

Bridging the gap between health economic analysis and the real world

Ikegami, N., 2005 Feb 1, In : Expert Review of Pharmacoeconomics and Outcomes Research. 5, 1, p. 1-3 3 p.

Research output: Contribution to journalEditorial

Resident and facility characteristics associated with the site of death among Japanese nursing home residents [8]

Shinoda-Tagawa, T. & Ikegami, N., 2005 Sep 1, In : Age and Ageing. 34, 5, p. 515-518 4 p.

Research output: Contribution to journalLetter

14 Citations (Scopus)
2004

Attitudes towards end-of-life care in a geriatric hospital in Japan.

Schreiner, A. S., Hara, N., Terakado, T. & Ikegami, N., 2004 Apr, In : International journal of palliative nursing. 10, 4, p. 185-193; discussion 193

Research output: Contribution to journalArticle

5 Citations (Scopus)

Development of an assessment tool for preventive home visits

Yamada, Y. & Ikegami, N., 2004 Jun, In : [Nippon kōshū eisei zasshi] Japanese journal of public health. 51, 6, p. 424-431 8 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Differential ability of polymorphic OGG1 proteins to suppress mutagenesis induced by 8-hydroxyguanine in human cell in vivo

Yamane, A., Kohno, T., Ito, K., Sunaga, N., Aoki, K., Yoshimura, K., Murakami, H., Nojima, Y. & Yokota, J., 2004 Sep, In : Carcinogenesis. 25, 9, p. 1689-1694 6 p.

Research output: Contribution to journalArticle

121 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)
75 Citations (Scopus)

Pharmacoeconomic evaluation of oseltamivir as prophylaxis against influenza infection

Sakamaki, H., Ikeda, S. & Ikegami, N., 2004 Apr 1, In : Yakugaku Zasshi. 124, 4, p. 207-216 10 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Splice-site genetic polymorphism of the human kallikrein 12 (KLK12) gene correlates with no substantial expression of KLK12 protein having serine protease activity.

Shinmura, K., Tao, H., Yamada, H., Kataoka, H., Sanjar, R., Wang, J., Yoshimura, K. & Sugimura, H., 2004 Sep, In : Human mutation. 24, 3, p. 273-274 2 p.

Research output: Contribution to journalArticle

17 Citations (Scopus)
2003

Discussion on Japanese insured medical care from neurosurgeons' standpoint. No.15, in series of articles: Controversy and reform proposals concerning insured medical care in neurosurgery

Adachi, N., Ikegami, N., Saitoh, I., Nakagawa, T., Doumoto, Y. & Kawase, T., 2003 Apr 1, In : Neurological Surgery. 31, 4, p. 457-469 13 p.

Research output: Contribution to journalReview article

1 Citation (Scopus)

Japan's radical reform of long-term care

Campbell, J. C. & Ikegami, N., 2003 Feb, In : Social Policy and Administration. 37, 1, p. 21-34 14 p.

Research output: Contribution to journalArticle

75 Citations (Scopus)

Pharmacoeconomic study of chemotherapy for gastric cancer: analysis of medical costs for oral fluoropyrimidine TS-1 and conventional i.v therapy

Tanaka, K., Kaetsu, T., Suzuki, S., Kusano, M., Yajima, S., Sakamaki, H., Ikeda, S., Ikegami, N. & Murayama, J. I., 2003 Jan, In : Gan to kagaku ryoho. Cancer & chemotherapy. 30, 1, p. 73-80 8 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)
2002

Choices, policy logics and problems in the design of long-term care systems

Ikegami, N. & Campbell, J. C., 2002 Dec, In : Social Policy and Administration. 36, 7, p. 719-734 16 p.

Research output: Contribution to journalArticle

44 Citations (Scopus)

Dimensions of temperament as vulnerability factors in depression

Ono, Y., Ando, J., Onoda, N., Yoshimura, K., Momose, T., Hirano, M. & Kanba, S., 2002 Jan 1, In : Molecular Psychiatry. 7, 9, p. 948-953 6 p.

Research output: Contribution to journalArticle

47 Citations (Scopus)

Economic evaluation of donepezil treatment for Alzheimer's disease in Japan

Ikeda, S., Yamada, Y. & Ikegami, N., 2002 Jan 1, In : Dementia and Geriatric Cognitive Disorders. 13, 1, p. 33-39 7 p.

Research output: Contribution to journalArticle

44 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 Jun 11, In : Health Economics. 11, 4, p. 341-353 13 p.

Research output: Contribution to journalArticle

314 Citations (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)

Mutation screening of the human Clock gene in circadian rhythm sleep disorders

Iwase, T., Kajimura, N., Uchiyama, M., Ebisawa, T., Yoshimura, K., Kamei, Y., Shibui, K., Kim, K., Kudo, Y., Katoh, M., Watanabe, T., Nakajima, T., Ozeki, Y., Sugishita, M., Hori, T., Ikeda, M., Toyoshima, R., Inoue, Y., Yamada, N., Mishima, K. & 5 others, Nomura, M., Ozaki, N., Okawa, M., Takahashi, K. & Yamauchi, T., 2002, In : Psychiatry Research. 109, 2, p. 121-128 8 p.

Research output: Contribution to journalArticle

119 Citations (Scopus)

Pharmacoeconomic research status and issues in clinical development of antimicrobial agents

Sakamaki, H., Ishida, N., Ikeda, S., Yajima, S. & Ikegami, N., 2002 Aug 1, In : Japanese Journal of Chemotherapy. 50, 8, p. 538-546 9 p.

Research output: Contribution to journalArticle

The development and use of quality-of-life measures to evaluate health outcomes in Japan

Fukuhara, S., Ikegami, N., Torrance, G. W., Nishimura, S., Drummond, M. & Schubert, F., 2002, In : PharmacoEconomics. 20, SUPPL. 2, p. 17-23 7 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)

Why has the use of health economic evaluation in Japan lagged behind that in other developed countries?

Ikegami, N., Drummond, M., Fukuhara, S., Nishimura, S., Torrance, G. W. & Schubert, F., 2002 Sep 27, In : PharmacoEconomics. 20, SUPPL. 2, p. 1-7 7 p.

Research output: Contribution to journalArticle

18 Citations (Scopus)
2001

Long-term care: A complex challenge

Ikegami, N., Hirdes, J. P. & Carpenter, I., 2001 Nov 1, In : OECD Observer. 229, p. 27-29 3 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

The health economics of diabetes

Ikegami, N., 2001 Jan 1, In : Folia Ophthalmologica Japonica. 52, 1, p. 4-9 6 p.

Research output: Contribution to journalArticle

2000

Long-term care insurance comes to Japan

Campbell, J. C. & Ikegami, N., 2000 Jan 1, In : Health Affairs. 19, 3, p. 26-39 14 p.

Research output: Contribution to journalArticle

Open Access
237 Citations (Scopus)

Somatoform symptoms in a Japanese community population: Prevalence and association with personality characteristics

Ono, Y., Yoshimura, K., Yamauchi, K., Asai, M., Young, J., Fujihara, S. & Kitamura, T., 2000 Jun 1, In : Transcultural Psychiatry. 37, 2, p. 217-227 11 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

The impact of legislation on psychotropic drug use in nursing homes: A cross-national perspective

Hughes, C. M., Lapane, K. L., Mor, V., Ikegami, N., Jonsson, P. V., Ljunggren, G. & Sgadari, A., 2000, In : Journal of the American Geriatrics Society. 48, 8, p. 931-937 7 p.

Research output: Contribution to journalArticle

53 Citations (Scopus)

Where should women deliver babies in Japan?

Ikegami, N. & Yoshimura, Y., 2000 May 31, In : Journal of the American Medical Association. 283, 20, p. 2712-2714 3 p.

Research output: Contribution to journalEditorial

1 Citation (Scopus)
1999

Effect of Japanese government policy on hospital pharmaceutical profit levels

Oliver, A. J., Ikegami, N. & Ikeda, S., 1999 Jan 1, In : Journal of Health Services Research and Policy. 4, 1, p. 27-32 6 p.

Research output: Contribution to journalArticle

1 Citation (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

64 Citations (Scopus)

Is paranoid schizophrenia the most common subtype?

Tateyama, M., Kudo, I., Hashimoto, M., Abe, Y., Kainuma, A., Yoshimura, K., Asai, M., Bartels, M. & Kasper, S., 1999 Mar, In : Psychopathology. 32, 2, p. 98-106 9 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)

Targeting and quality of nursing home care. A five-nation study

Carpenter, G. I., Hirdes, J. P., Ribbe, M. W., Ikegami, N., Challis, D., Steel, K., Bernabei, R. & Fries, B., 1999 Apr 1, In : Aging Clinical and Experimental Research. 11, 2, p. 83-89 7 p.

Research output: Contribution to journalArticle

22 Citations (Scopus)
1998

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)

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)

Long-term care in Japan and the United States: A medical or social issue? [3] (multiple letters)

Manning, G. C. & Ikegami, N., 1998 Mar 11, In : Journal of the American Medical Association. 279, 10, p. 747-748 2 p.

Research output: Contribution to journalLetter

2 Citations (Scopus)

Pharmacoeconomic evaluation in Japanese pharmaceutical companies

Ikeda, S., Oliver, A. J. & Ikegami, N., 1998 Jan 1, In : Drug Information Journal. 32, 1, p. 169-174 6 p.

Research output: Contribution to journalReview article

4 Citations (Scopus)

Why medical care costs in Japan have increased despite declining prices for pharmaceuticals

Ikegami, N., 1998 Jan 1, In : PharmacoEconomics. 14, SUPPL. 1, p. 97-105 9 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)
1997

Comprehensive clinical assessment in community setting: Applicability of the MDS-HC

Morris, J. N., Fries, B. E., Steel, K., Ikegami, N., Bernabei, R., Carpenter, G. I., Gilgen, R., Hirdes, J. P. & Topinková, E., 1997 Aug, In : Journal of the American Geriatrics Society. 45, 8, p. 1017-1024 8 p.

Research output: Contribution to journalArticle

408 Citations (Scopus)

Japan's aging population. Implications for healthcare

Oliver, A. J., Ikegami, N. & Ikeda, S., 1997 Jan 1, In : PharmacoEconomics. 11, 4, p. 306-318 13 p.

Research output: Contribution to journalReview article

11 Citations (Scopus)