Effects of between-person differences and within-person changes in symptoms of anxiety and depression on older age cognitive performance.

ABSTRACT:

Background

Anxiety and depression are both important correlates of cognitive function. However, longitudinal studies investigating how they covary with cognition within the same individual are scarce. We aimed to simultaneously estimate associations of between-person differences and within-person variability in anxiety and depression with cognitive performance in a sample of non-demented older people.

Methods

Participants in the Lothian Birth Cohort 1921 study, a population-based narrow-age sample (mean age at wave 1 = 79 years, n = 535), were examined on five occasions across 13 years. Anxiety and depression were measured with the Hospital Anxiety and Depression Scale (HADS) and cognitive performance was assessed with tests of reasoning, logical memory, and letter fluency.

SUBMITTER: Laukka EJ 

PROVIDER: S-EPMC6088541 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature