Adina Zeki Al Hazzouri's work shows effect of residential segregation on brain health

Monday, May 4, 2020

An original investigation on the association of cognitive performance and racial residential segregation throughout young adulthood was published in JAMA Neurology today. Columbia Aging Center faculty member Adina Zeki Al Hazzouri, PhD, is senior author.  The study asks whether cumulative exposure to residential segregation in young adulthood is associated with midlife cognitive performance among black individuals in the United States. Through a cohort study of 1568 black participants in the Coronary Artery Risk Development in Young Adults (CARDIA) study, researchers found that relative to living in low-segregation neighborhoods, black participants who were exposed to highly segregated neighborhoods in young adulthood exhibited worse performance in processing speed. This association may potentially explain black-white disparities in dementia risk at older age.

Caunca MR, Odden MC, Glymour MM, Elfassy T, Kershaw KN, Sidney S, Yaffe K, Launer L, and Zeki Al Hazzouri A. Association of Racial Residential Segregation Throughout Young Adulthood and Cognitive Performance in Middle-aged Participants in the CARDIA Study. JAMA Neurol. Published online May 04, 2020. doi:10.1001/jamaneurol.2020.0860