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Health Services Research


Theme Leader :
Tatsuro Ishizaki, M.D., Ph.D, M.P.H.
Researcher :
Tomoko Wakui, Ph.D., Seigo Mitsutake, Ph.D. , Yukie Masui, M.A., Ph.D.,Yuko Yoshida, Ph.D.
Associate Researcher :
Mio Ohta, Rumiko Tutiya


long-term care, quality of care, care coordination, transitional care, family caregiver

Major Research Titles

  1. 1.Ensuring coordination and continuity of medical and long-term care
  2. 2.Evaluative research on integrated community care policy
  3. 3.Empirical analyses of resource use of medical and long-term care among older individuals


1. Ensuring coordination and continuity of medical and long-term care
To improve quality of transitional care for older individuals, we explore a program that ensures coordination and continuity of medical and long-term care during transitions between hospitals, the patient's home, and long-term care facilities in Japan.

2. Evaluative research on integrated community care policy
The research aims to identify administrative issues and challenges that a community may face when implementing a national policy called "Integrated Community Care Systems." The methods to be used for this research are interviewing elderly, family caregivers and professional who supports them to illuminate relations between care needs and resources available for local care provision.

3. Empirical analyses of resource use of medical and long-term care among older individuals To provide solid evidence to devise better health care policies for older adults, we examine resource use of medical and long-term care among older people, using claim data of medical and long-term care insurance plans provided by a local government and death certificate data provided by the Ministry of Health, Labour and Welfare.


  1. 1.Mori, H., Nakayama, T. : Academic impact of qualitative studies in healthcare: bibliometric analysis. PLoS One, 8(3), e57371, 2013
  2. 2. Mori, H., Fukuda, R., Hayashi, A., Yamamoto, K., Misago, C., Nakayama, T. : Characteristics of caregiver perceptions of end-of-life caregiving experiences in cancer survivorship: in-depth interview study. Psychooncology, 21(6), 666-74, 2012
  3. 3.Murayama., H., Wakui., T., Arami., R., Sugawara, I., Yoshie, S. : Contextual effect of different components of social capital on health in a suburban city of the greater Tokyo area: a multilevel analysis. Soc Sci Med., 75(12), 2472-2480, 2012
  4. 4.Wakui, T., Saito, T., Agree, E.M., Kai, I. : Effects of home, outside leisure, social, and peer activity on psychological health among Japanese family caregivers. Aging Ment Health, 16(4), 500-506, 2012
  5. 5.Ishizaki, T., Furuna, T., Yoshida, Y., Iwasa, H., Shimada, H., Yoshida, H., Kumagai, S., and Suzuki, T., for the TMIG-LISA Research Group. : Declines in physical performance by sex and age among nondisabled community-dwelling elderly over a six-year period. J Epidemiol., 21(3), 176-183, 2011
  6. 6.Murayama, H., Yoshie, S., Sugawara, I., Wakui, T., Arami, R. : Contextual effect of neighborhood environment on homebound elderly in a Japanese community. Arch Gerontol Geriatr., 54(1), 67-71, 2011
  7. 7.Ishizaki, T., Yoshida, H., Suzuki, T., and Shibata, H., for the TMIG Longitudinal Interdisciplinary Study on Aging Research Group. : The association between self-rated health status and increasing age among older Japanese living in a rural community over a 6-year period: a longitudinal data analysis. Gerontology, 55(3), 344-52, 2009
  8. 8.Kodama, H., Izumo, Y., Takahashi,R., Suda,Y., Nishimura, M., Kudo, H., Miyamoto, M., and Sasaki, H. : Family relationships of self-care-dependent older people and institutionalized rate to nursing homes. Geriatr Gerontol Int., 9(3), 320-325, 2009
  9. 9.Ishizaki, T., Imanaka, Y., Oh, E.H., Sekimoto, M., Hayashida, K., and Kobuse, H. : Association between patient age and hospitalization resource use in a teaching hospital in Japan. Health Policy, 87(1), 20-30, 2008
  10. 10.Kodama, H., Suda, Y., Takahashi, R., Nishimura, M., Izumo, Y., Kudo. H, and Sasaki, H : Family relationships for self-care dependent older people at home. Geriatr Gerontol Int., 7(3), 252-257, 2007
  11. 11.Ishizaki, T., Kai, I., and Imanaka, Y. : Self-rated health and social role as predictors for 6-year total mortality among a non-disabled older Japanese population. Arch Gerontol Geriatr., 42(1), 91-99, 2006
  12. 12.Ishizaki, T., Kai, I., Kobayashi, Y., Matsuyama, Y., and Imanaka, Y. : The effect of aging on functional decline among older Japanese living in a community: a 5-year longitudinal data analysis. Aging Clin Exp Res., 16(3), 233-239, 2004
  13. 13.Ishizaki, T., Watanabe, S., Suzuki, T., Shibata, H., and Haga, H. : Predictors for functional decline among non-disabled older Japanese living in a community during a 3-year follow-up. J Am Geriatr Soc., 48(12), 1424-1429, 2000