TY - JOUR
T1 - Trends in disability-free life expectancy in Japan, 1995-2004
AU - Hashimoto, Shuji
AU - Kawado, Miyuki
AU - Seko, Rumi
AU - Murakami, Yoshitaka
AU - Hayashi, Masayuki
AU - Kato, Masahiro
AU - Noda, Tatsuya
AU - Ojima, Toshiyuki
AU - Nagai, Masato
AU - Tsuji, Ichiro
PY - 2010
Y1 - 2010
N2 - Background: In Japan, life expectancy at birth is currently the highest in the world. However, recent trends in disability-free life expectancy in Japan have not been examined. Methods: We used data from Japanese national surveys for the period 1995-2004. These surveys included information on activity status measured by common self-reported instruments. The numbers of expected years with and without activity limitation were estimated by using the Sullivan method. Results: The numbers of expected years of life without activity limitation, at birth, in 1995 and 2004 were 68.5 and 69.7, respectively, in males and 72.1 and 73.0 in females. As a proportion of total life expectancy, at birth, these values represent a decrease from 89.7% to 88.6% in males and from 87.1% to 85.3% in females. The proportion of expected years with a limitation of some activities except activities of daily living (ADL) increased in males and females. The proportion of those with an ADL limitation increased in females, but not in males. Conclusions: The trends in expected years with and without activity limitation suggest that the duration of life with a light or moderate disability increased in Japanese males and females during the period 1995-2004.
AB - Background: In Japan, life expectancy at birth is currently the highest in the world. However, recent trends in disability-free life expectancy in Japan have not been examined. Methods: We used data from Japanese national surveys for the period 1995-2004. These surveys included information on activity status measured by common self-reported instruments. The numbers of expected years with and without activity limitation were estimated by using the Sullivan method. Results: The numbers of expected years of life without activity limitation, at birth, in 1995 and 2004 were 68.5 and 69.7, respectively, in males and 72.1 and 73.0 in females. As a proportion of total life expectancy, at birth, these values represent a decrease from 89.7% to 88.6% in males and from 87.1% to 85.3% in females. The proportion of expected years with a limitation of some activities except activities of daily living (ADL) increased in males and females. The proportion of those with an ADL limitation increased in females, but not in males. Conclusions: The trends in expected years with and without activity limitation suggest that the duration of life with a light or moderate disability increased in Japanese males and females during the period 1995-2004.
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U2 - 10.2188/jea.JE20090190
DO - 10.2188/jea.JE20090190
M3 - Article
C2 - 20530916
AN - SCOPUS:77954950782
SN - 0917-5040
VL - 20
SP - 308
EP - 312
JO - Journal of epidemiology
JF - Journal of epidemiology
IS - 4
ER -