Department of Health Policy and Management

Research Output 1980 2020

2006
2 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, In : Disease Management and Health Outcomes. 14, 1, p. 45-54 10 p.

Research output: Contribution to journalArticle

Disease Management
Japan
Exercise Therapy
Quality of Life
Patient Compliance
8 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, In : Hypertension Research. 29, 5, p. 333-338 6 p.

Research output: Contribution to journalArticle

Calcium Channel Blockers
Angiotensin-Converting Enzyme Inhibitors
Health Care Costs
Japan
Hypertension
58 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

Type 2 Diabetes Mellitus
chronic illness
Japan
quality of life
Quality of Life
56 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

Long-Term Care
Inappropriate Prescribing
Ticlopidine
Potentially Inappropriate Medication List
Psychotropic Drugs
18 Citations (Scopus)

Registry of adolescent and young adult twins in the Tokyo area

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

Research output: Contribution to journalArticle

Tokyo
Registries
Young Adult
Psychology
Medical Genetics
20 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, In : Health Policy. 79, 2-3, p. 221-230 10 p.

Research output: Contribution to journalArticle

Technology
Diffusion of Innovation
Physicians
Biomedical Technology
Health Expenditures
2005

Bridging the gap between health economic analysis and the real world

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

Research output: Contribution to journalArticle

Economics
Health
14 Citations (Scopus)

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

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

Research output: Contribution to journalArticle

Health Facility Size
Homes for the Aged
Terminal Care
Quality of Health Care
Nursing Homes
2004
5 Citations (Scopus)

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

Schreiner, A. S., Hara, N., Terakado, T. & Ikegami, N., 2004, In : International Journal of Palliative Nursing. 10, 4

Research output: Contribution to journalArticle

Terminal Care
Nursing Staff
Geriatrics
Japan
Palliative Care
91 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

Home Care Services
Risk Adjustment
Selection Bias
Quality of Health Care
Ontario
73 Citations (Scopus)
Fee Schedules
Fees and Charges
Cost Control
Diagnosis-Related Groups
Long-Term Care
2 Citations (Scopus)

Pharmacoeconomic evaluation of oseltamivir as prophylaxis against influenza infection

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

Research output: Contribution to journalArticle

Oseltamivir
Pharmaceutical Economics
Human Influenza
Costs and Cost Analysis
Infection
2003
1 Citation (Scopus)

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 journalArticle

Quality of Health Care
Neurosurgery
Neurosurgeons
72 Citations (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

Japan
reform
insurance contribution
insurance system
long-term care insurance
2 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

Pharmaceutical Economics
Stomach Neoplasms
Costs and Cost Analysis
Drug Therapy
Therapeutics
2002
43 Citations (Scopus)

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

mobile social services
health services
public sector
medical care
expenditure
47 Citations (Scopus)

Dimensions of temperament as vulnerability factors in depression

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

Research output: Contribution to journalArticle

Temperament
Depression
Dizygotic Twins
Monozygotic Twins
Reward
44 Citations (Scopus)

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

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

Research output: Contribution to journalArticle

Cost-Benefit Analysis
Japan
Alzheimer Disease
Long-Term Care Insurance
Fee Schedules
305 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

Japan
Quality-Adjusted Life Years
Population
Values
Interviews
10 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, In : PharmacoEconomics. 20, SUPPL. 2, p. 9-15 7 p.

Research output: Contribution to journalArticle

Cost-Benefit Analysis
Japan
Pharmaceutical Technology
Guidelines
Delivery of Health Care

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

Pharmaceutical Economics
Anti-Infective Agents
Dentists
Research
Pharmaceutical Preparations
9 Citations (Scopus)

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

Japan
Quality of Life
Health
Cost-Benefit Analysis
Economics
18 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, In : PharmacoEconomics. 20, SUPPL. 2, p. 1-7 7 p.

Research output: Contribution to journalArticle

Developed Countries
Cost-Benefit Analysis
Japan
Health
Cost Control
2001
2 Citations (Scopus)

Long-term care: A complex challenge

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

Research output: Contribution to journalArticle

social security
health care
public policy
housing
public

The health economics of diabetes

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

Research output: Contribution to journalArticle

Economics
Costs and Cost Analysis
Cost of Illness
Health
Case Management
2000
228 Citations (Scopus)

Long-term care insurance comes to Japan

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

Research output: Contribution to journalArticle

Long-Term Care Insurance
long-term care insurance
Aid to Families with Dependent Children
Japan
Frail Elderly
5 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, In : Transcultural Psychiatry. 37, 2, p. 217-227 11 p.

Research output: Contribution to journalArticle

Personality
personality
psychological care
neuroticism
interview
52 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

Psychotropic Drugs
Nursing Homes
Legislation
Denmark
Iceland
1 Citation (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 journalArticle

Maternal Health Services
Maternal Mortality
Japan
Delivery of Health Care
Pregnancy
1999
1 Citation (Scopus)

Effect of Japanese government policy on hospital pharmaceutical profit levels

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

Research output: Contribution to journalArticle

pharmaceutical
government policy
profit
drug
Pharmaceutical Preparations
64 Citations (Scopus)

Health care reform in japan: The virtues of muddling through

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

Research output: Contribution to journalArticle

Fee Schedules
Healthcare Financing
Health Care Reform
Quality of Health Care
Health Insurance
7 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

Paranoid Schizophrenia
Psychiatry
Schizophrenia
International Classification of Diseases
Age of Onset
21 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, In : Aging clinical and experimental research. 11, 2, p. 83-89 7 p.

Research output: Contribution to journalArticle

Home Care Services
Nursing Care
Nursing Homes
Life Expectancy
Italy
1998
4 Citations (Scopus)

Growing old in Japan

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

Research output: Contribution to journalArticle

Quality of Health Care
Long-Term Care
Japan
17 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

Health Care Quality Assurance
Health Services for the Aged
Fee Schedules
Health Knowledge, Attitudes, Practice
Fee-for-Service Plans
2 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 journalArticle

Long-Term Care Insurance
Long-Term Care
Japan
4 Citations (Scopus)

Pharmacoeconomic evaluation in Japanese pharmaceutical companies

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

Research output: Contribution to journalArticle

Pharmaceutical Economics
Pharmaceutical Preparations
Industry
Economics
Negotiating
11 Citations (Scopus)

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

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

Research output: Contribution to journalArticle

Health Care Costs
Japan
Fee Schedules
Pharmaceutical Preparations
Ambulatory Care
1997
397 Citations (Scopus)

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

Home Care Services
Nursing Homes
Home Care Agencies
Nursing Assessment
Social Environment
11 Citations (Scopus)

Japan's aging population. Implications for healthcare

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

Research output: Contribution to journalArticle

Japan
Delivery of Health Care
Oils
Economics
Population
16 Citations (Scopus)

Low-care cases in long-term care settings: Variation among nations

Ikegami, N., Morris, J. N. & Fries, B. E., 1997, In : Age and Ageing. 26, SUPPL. 2, p. 67-71 5 p.

Research output: Contribution to journalArticle

Long-Term Care
Activities of Daily Living
Iceland
Institutionalization
Grooming
198 Citations (Scopus)

Nursing homes in 10 nations: A comparison between countries and settings

Ribbe, M. W., Ljunggren, G., Steel, K., Topinková, E., Hawes, C., Ikegami, N., Henrard, J. C. & Jónnson, P. V., 1997, In : Age and Ageing. 26, SUPPL. 2, p. 3-12 10 p.

Research output: Contribution to journalArticle

Long-Term Care
Nursing Homes
Iceland
Institutionalization
Sweden
76 Citations (Scopus)

Public long-term care insurance in Japan

Ikegami, N., 1997 Oct 22, In : Journal of the American Medical Association. 278, 16, p. 1310-1314 5 p.

Research output: Contribution to journalArticle

Long-Term Care Insurance
Long-Term Care
Japan
Respite Care
Physicians
29 Citations (Scopus)

RUG-III and resource allocation: Comparing the relationship of direct care time with patient characteristics in five countries

Carpenter, G. I., Ikegami, N., Ljunggren, G., Carrillo, E. & Fries, B. E., 1997, In : Age and Ageing. 26, SUPPL. 2, p. 61-65 5 p.

Research output: Contribution to journalArticle

Resource Allocation
Wales
England
Validation Studies
Japan
87 Citations (Scopus)

Serotonin transporter gene regulatory region polymorphism and anxiety- related traits in the Japanese

Nakamura, T., Muramatsu, T., Ono, Y., Matsushita, S., Higuchi, S., Mizushima, H., Yoshimura, K., Kanba, S. & Asai, M., 1997, In : American Journal of Medical Genetics - Neuropsychiatric Genetics. 74, 5, p. 544-545 2 p.

Research output: Contribution to journalArticle

Nerve Tissue Proteins
Serotonin Plasma Membrane Transport Proteins
Membrane Transport Proteins
Nucleic Acid Regulatory Sequences
Membrane Glycoproteins
1996
16 Citations (Scopus)

A case for the adoption of pharmacoeconomic guidelines in Japan

Ikeda, S., Ikegami, N., Oliver, A. J. & Ikeda, M., 1996, In : PharmacoEconomics. 10, 6, p. 546-551 6 p.

Research output: Contribution to journalArticle

Pharmaceutical Economics
Japan
Guidelines
Pharmaceutical Preparations
Decision Support Techniques
32 Citations (Scopus)

Avoidant personality disorder and taijin kyoufu: Sociocultural implications of the WHO/ADAMHA International Study of Personality Disorders in Japan

Ono, Y., Yoshimura, K., Sueoka, R., Yamauchi, K., Mizushima, H., Momose, T., Nakamura, K., Okonogi, K. & Asai, M., 1996, In : Acta Psychiatrica Scandinavica. 93, 3, p. 172-176 5 p.

Research output: Contribution to journalArticle

Personality Disorders
Japan
Diagnostic and Statistical Manual of Mental Disorders
Personality
Anxiety
1995
115 Citations (Scopus)

Medical care in Japan

Ikegami, N. & Campbell, J. C., 1995, In : New England Journal of Medicine. 333, 19, p. 1295-1299 5 p.

Research output: Contribution to journalArticle

Single-Payer System
Fee Schedules
Health Care Reform
Health Policy
Health Care Costs
1994
47 Citations (Scopus)

Applying RUG-III in Japanese long-term care facilities

Ikegami, N., Fries, B. E., Takagi, Y., Ikeda, S. & Ibe, T., 1994, In : Gerontologist. 34, 5, p. 628-639 12 p.

Research output: Contribution to journalArticle

Long-Term Care
Costs and Cost Analysis
Diagnosis-Related Groups
Salaries and Fringe Benefits
Nursing Homes
4 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

Reimbursement Mechanisms
Diagnosis-Related Groups
Long-Term Care
Japan
Direction compound