Prospective study of living arrangement by the ability to receive informal care and survival among Japanese elderly.
OBJECTIVE
In light of recent concerns regarding informal care, we examined the association between living arrangement and survival among elderly Japanese, with living arrangement measured in terms of the ability to receive informal care from the immediate family.


METHODS
A total of 3000 subjects aged 60 years or older were randomly recruited in Yukuhashi City, Japan, in 2002, of whom 2773 provided complete information for analysis. A trained local welfare commissioner visited the subjects annually from 2002 to 2007 and collected information concerning living arrangements, mobility status, medical status, and use of long-term care insurance service. During the 5 years of follow-up, 381 deaths were recorded.


RESULTS
Living arrangement was not associated with survival among elderly women. In contrast, compared with men living with others able to provide care throughout the day, mortality was higher for those living with others unable to provide sufficient care due to illness or infirmity; those living with others receiving long-term care insurance service; and those living alone without support from family or friends (multivariable hazard ratio=1.40, 95% Confidence Interval 0.94-2.09; hazard ratio=1.89, 95% Confidence Interval 1.07-3.34; and hazard ratio=5.76, 95% Confidence Interval 2.16-15.36; respectively).


CONCLUSIONS
We found that living arrangement as classified by the ability to receive informal care affects survival among elderly men.
Fujino
Yoshihisa
Y
Department of Preventive Medicine and Community Health, University of Occupational and Environmental Health, Iseigaoka, Yahatanishiku, Kitakyushu, Japan. zenq@med.uoeh-u.ac.jp
Matsuda
Shinya
S
D000368:Aged; D017028:Caregivers / Q000600:supply & distribution*; D015331:Cohort Studies; D005260:Female; D006801:Humans; D007407:Interviews as Topic; D007564:Japan / Q000453:epidemiology; D008297:Male; D009026:Mortality / Q000639:trends; D011446:Prospective Studies; D012111:Residence Characteristics; D011795:Surveys and Questionnaires; D013534:Survival