Reliability and predictive validity of two scales of self-rated health in China: results from China Health and Retirement Longitudinal Study (CHARLS).

ABSTRACT:

Background

Despite the widespread use of the single item self-rated health (SRH) question, its reliability has never been evaluated in Chinese population.

Methods

We used data from the China Health and Retirement Longitudinal Study, waves 1-4 (2011-2019). In wave 1, the same SRH question was asked twice, separated by other questions, on a subset of 4533 subjects, allowing us to examine the test-retest reliability of SRH. In addition, two versions of SRH questions (the WHO and US versions) were asked (n = 11,429). Kappa (κ), weighted kappa ([Formula: see text]), and polychoric correlation coefficient (ρ) were used for reliability assessment. Cox proportional-hazards models were estimated to assess the predictive validity of SRH measurement for mortality over 7 years of follow

SUBMITTER: Pan Y 

PROVIDER: S-EPMC9536015 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature