Relationship of Early-Life Residence and Educational Experience to Level and Change in Cognitive Functioning: Results of the Minority Aging Research Study
Melissa LamarPhD,
Alan J LernerMD,
Bryan D JamesPhD,
Lei YuPhD,
Crystal M GloverPhD,
Robert S WilsonPhD,
Lisa L BarnesPhD and
Angela GutchessPhD
The Journals of Gerontology: Series B, 2020, vol. 75, issue 7, e81-e92
Abstract:
ObjectiveInvestigate associations of early-life residence and school segregation with cognitive change in the Minority Aging Research Study.MethodsFour hundred ninety-eight blacks (age ~ 73.5; 75% = women) without dementia at baseline self-reported State of birth, residence at age 12, and school segregation status. Census Bureau definitions of South and Northeast/Midwest were used to categorize early-life residence. We evaluated global cognition and five cognitive domains at baseline and annually for ~7.5 years. Linear mixed effects models examined the associations of region of birth and residence at age 12 with baseline level and longitudinal change in cognition. Additional models examined school segregation experience.Results~65% of Southern-born participants still lived in the South at age 12. Southern birth was associated with lower baseline global cognition and all cognitive domains (p-values ≤ .02) compared to Northern birth, but not cognitive change. A similar profile was seen for Southern residence at age 12. Segregation experience significantly modified associations of residence at age 12 on levels of cognition. Participants residing in the South attending a legally desegregated school demonstrated lower baseline levels of cognition (global, semantic, and working memory) than their Northeast/Midwest counterparts attending a legally desegregated or segregated school as well as their Southern counterparts attending a legally segregated school. This profile for participants attending a desegregated school in the South held for processing speed and visuospatial ability in comparisons to Northeast/Midwest counterparts, particularly those attending a legally desegregated school.ConclusionBaseline cognition was poorer in individuals born and residing in the South, particularly those attending desegregated schools at age 12.
Keywords: Cognition; Epidemiology; Life events and context; Longitudinal change; Segregation (search for similar items in EconPapers)
Date: 2020
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