Racial/Ethnic Differences in Trajectories of Cognitive Function in Older Adults.

TitleRacial/Ethnic Differences in Trajectories of Cognitive Function in Older Adults.
Publication TypeJournal Article
Year of Publication2016
AuthorsVasquez, E, Botoseneanu, A, Bennett, JM, Shaw, BA
JournalJ Aging Health
Volume28
Issue8
Pagination1382-1402
Date Published2016 12
ISSN Number1552-6887
KeywordsAfrican Continental Ancestry Group, Aged, Aged, 80 and over, Cognition, Cognition Disorders, European Continental Ancestry Group, Female, Health Behavior, Hispanic Americans, Humans, Male
Abstract

<p><b>OBJECTIVE: </b>The objective of this study is to (a) examine racial/ethnic differences in trajectories of cognitive function and (b) evaluate the role of education and health behaviors (physical activity [PA] and smoking) as mediators of racial/ethnic differences in the rate of decline in cognitive function in older adults.</p><p><b>METHOD: </b>Data for this study came from the Health and Retirement Study ( n = 3,424). Hierarchical linear models were used to define the trajectory of cognitive function between 2002 and 2008. Participants were classified based on PA as non-vigorously active, intermittent vigorously active, and consistently vigorously active.</p><p><b>RESULTS: </b>After adding education, the Hispanic's and Black's disparities in cognitive performance were slightly attenuated (Hispanics, β = -1.049, p < .001; Blacks, β = -3.397, p < .001) but were still different from Whites. Smoking was not associated with the cognition intercept or rate of decline.</p><p><b>DISCUSSION: </b>We found education had a partial mediating effect on racial differences in levels of cognition but not on the rate of change over time.</p>

URLhttp://jah.sagepub.com/content/early/2015/12/29/0898264315620589.abstract
DOI10.1177/0898264315620589
User Guide Notes

http://www.ncbi.nlm.nih.gov/pubmed/26719488?dopt=Abstract

Endnote Keywords

cognition/education/ethnicity/physical activity/smoking

Endnote ID

999999

Alternate JournalJ Aging Health
Citation Key6460
PubMed ID26719488
Grant ListR01 AG031109 / AG / NIA NIH HHS / United States