Cognitive Aging in Black and White Americans: Cognition, Cognitive Decline, and Incidence of Alzheimer Disease Dementia.

ABSTRACT:

Background

US-based studies have reported that older blacks perform worse than older whites on cognitive tests and have higher risk of Alzheimer disease dementia (AD). It is unclear whether these findings reflect differences in cognitive decline.

Methods

The Chicago Health and Aging Project followed individuals, 65+ years old (64% black, 36% white), for up to 18 years. Participants underwent triennial cognitive assessments; stratified randomized samples underwent assessments for AD. We compared black and white participants' cognitive performance, cognitive decline rate (N = 7,735), and AD incidence (N = 2,144), adjusting for age and sex.

Results

Black participants performed worse than white participants on the cognitive tests; 441 participants developed AD. Black part

SUBMITTER: Weuve J 

PROVIDER: S-EPMC5718953 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature