Sex Differences in Concomitant Trajectories of Self-Reported Disability and Measured Physical Capacity in Older Adults.

ABSTRACT:

Background

Despite documented age-related declines in self-reported functional status and measured physical capacity, it is unclear whether these functional indicators follow similar trajectories over time or whether the patterns of change differ by sex.

Methods

We used longitudinal data from 687 initially nondisabled adults, aged 70 or older, from the Precipitating Events Project, who were evaluated every 18 months for nearly 14 years. Self-reported disability was assessed with a 12-item disability scale. Physical capacity was measured using grip strength and a modified version of Short Physical Performance Battery. Hierarchical linear models estimated the intra-individual trajectory of each functional indicator and differences in trajectories' intercept and slope by sex.

SUBMITTER: Botoseneanu A 

PROVIDER: S-EPMC4945890 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature