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Chinese Longitudinal Healthy Longevity Survey and some research findings
Author(s) -
Zeng Yi
Publication year - 2004
Publication title -
geriatrics and gerontology international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.823
H-Index - 57
eISSN - 1447-0594
pISSN - 1444-1586
DOI - 10.1111/j.1447-0594.2004.00147.x
Subject(s) - longevity , life expectancy , demography , socioeconomic status , gerontology , life table , disadvantaged , psychology , medicine , population , sociology , political science , law
We first present a brief introduction to the Chinese Longitudinal Healthy Longevity Survey (CLHLS) conducted in 1998, 2000, and 2002, including the age‐sex distribution of the uniquely largest sample size of the oldest‐old interviewees, coverage, contents of the extensive questionnaire data collected for both survival and deceased interviewees, etc. We then summarize some examples of research findings based on the unique CLHLS data sets. This includes: (1) Oldest‐old Chinese women are seriously disadvantaged in both socioeconomic and health status and extent of morbidity before death; (2) analysis has shown that the rural oldest‐old have higher active life expectancy than do their urban counterparts; (3) the conventional approach without active/disable data before death caused statistically significant biases of underestimating the disabled life expectancy, and we extended the multi‐state life table method for computing active/disabled life expectancies with consideration of active/disable status before death and applied it to the CLHLS data to improve the estimates; (4) positive association of late childbearing and healthy longevity at oldest‐old ages was found, and the association is stronger in oldest‐old women than in men; (5) evidences have demonstrated that optimism is one of the contributing factors of longevity.