Journal
JOURNAL OF THE INTERNATIONAL NEUROPSYCHOLOGICAL SOCIETY
Volume -, Issue -, Pages -Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S135561772300036X
Keywords
cerebrovascular; cognitive aging; education; mediation; parental substance abuse; parental physical abuse; structural equation model
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This study extends findings on the associations between adverse childhood experiences (ACEs) and cognitive health in older adulthood. It provides evidence for broad and persistent indirect associations between parental substance abuse or physical abuse in childhood and cognitive aging, mediated by educational attainment and stroke. Future research should examine additional ACEs and mechanisms as well as moderators of these associations to better understand intervention points.
Objective:Adverse childhood experiences (ACEs) have been associated with worse cognitive health in older adulthood. This study aimed to extend findings on the specificity, persistence, and pathways of associations between two ACEs and cognition by using a comprehensive neuropsychological battery and a time-lagged mediation design. Method:Participants were 3304 older adults in the Health and Retirement Study Harmonized Cognitive Assessment Protocol. Participants retrospectively reported whether they were exposed to parental substance abuse or experienced parental physical abuse before age 18. Factor scores derived from a battery of 13 neuropsychological tests indexed cognitive domains of episodic memory, executive functioning, processing speed, language, and visuospatial function. Structural equation models examined self-reported years of education and stroke as mediators, controlling for sociodemographics and childhood socioeconomic status. Results:Parental substance abuse in childhood was associated with worse later-life cognitive function across all domains, in part via pathways involving educational attainment and stroke. Parental physical abuse was associated with worse cognitive outcomes via stroke independent of education. Conclusions:This national longitudinal study in the United States provides evidence for broad and persistent indirect associations between two ACEs and cognitive aging via differential pathways involving educational attainment and stroke. Future research should examine additional ACEs and mechanisms as well as moderators of these associations to better understand points of intervention.
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