Relation between 20-year income volatility and brain health in midlife: The CARDIA study.

ABSTRACT:

Objective

Income volatility presents a growing public health threat. To our knowledge, no previous study examined the relationship among income volatility, cognitive function, and brain integrity.

Methods

We studied 3,287 participants aged 23-35 years in 1990 from the Coronary Artery Risk Development in Young Adults prospective cohort study. Income volatility data were created using income data collected from 1990 to 2010 and defined as SD of percent change in income and number of income drops ≥25% (categorized as 0, 1, or 2+). In 2010, cognitive tests (n = 3,287) and brain scans (n = 716) were obtained.

Results

After covariate adjustment, higher income volatility was associated with worse performance on processing speed (β = -1.09, 95% confidence interval [CI] -1.73

SUBMITTER: Grasset L 

PROVIDER: S-EPMC6946474 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature