Development and Validation of a Functional Outcome Measure in the National Health and Aging Trends Study.

ABSTRACT: Background:Despite the rich array of data available on seven self-care and mobility activities, a functional outcome measure, which sums the scores across these activities, has not yet been developed or validated for use in the National Health and Aging Trends Study (NHATS). Methods:Using longitudinal data from NHATS, we evaluted 7,609 participants who were living in community settings. Development of the functional outcome measure was guided by the presence of consistent mortality gradients across a 5-category, 4-category, and two 3-category scales for each of the seven activities, whereas validation was based on predictive accuracy for mortality and concurrent change in physical performance. Results:Consistent mortality gradients were observed only for the two 3-category scales (with eac

SUBMITTER: Gill TM 

PROVIDER: S-EPMC6037123 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature