Role of previous parity in the relationship between lifetime physical activity and later life cognition: The Rancho Bernardo study.

Дата публикации: 27-08-2026 00:00:00

BackgroundParity history influences dementia risk and cognitive aging, and recent evidence suggests it may also influence the association between physical activity and cognition in later life.ObjectiveTo examine associations between total lifetime and life-stage-specific physical activity and later life cognition in postmenopausal females with differing parity histories.MethodsThis cross-sectional analysis using data from the Rancho Bernardo Study included 867 postmenopausal females with complete data, categorized into three parity groups (number of pregnancies >6-months): nulliparous, 1-2 pregnancies, and grand-multiparous (≥3 pregnancies). Cognitive outcomes included executive functions and memory. Physical activity was assessed using a self-report questionnaire capturing retrospective activity during adolescence, age 30, age 50, and current activity in later life. Covariates included age, education, health composite score, body mass index, and hysterectomy status. Linear...

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