1. Cardiovascular Health, Race, and Decline in Cognitive Function in Midlife Women: The Study of Women's Health Across the Nation.
- Author
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Janssen I, Powell LH, Dugan SA, Derby CA, and Kravitz HM
- Subjects
- Adult, Female, Humans, Middle Aged, Age Factors, Cardiovascular Diseases ethnology, Cardiovascular Diseases epidemiology, Cardiovascular Diseases psychology, Chicago epidemiology, Cognitive Aging psychology, Heart Disease Risk Factors, Risk Factors, United States epidemiology, White, Black or African American psychology, Cognition physiology, Cognitive Dysfunction epidemiology, Cognitive Dysfunction ethnology, Cognitive Dysfunction physiopathology, Cognitive Dysfunction diagnosis, Memory, Short-Term physiology, White People statistics & numerical data, Women's Health ethnology
- Abstract
Background: Cognitive decline may progress for decades before dementia onset. Better cardiovascular health (CVH) has been related to less cognitive decline, but it is unclear whether this begins early, for all racial subgroups, and all domains of cognitive function. The purpose of this study was to determine the impact of CVH on decline in the 2 domains of cognition that decline first in White and Black women at midlife., Methods and Results: Subjects were 363 Black and 402 White women, similar in baseline age (mean±SD, 46.6±3.0 years) and education (15.7±2.0 years), from the Chicago site of the Study of Women's Health Across the Nation. Cognition, measured as processing speed and working memory, was assessed annually or biennially over a maximum of 20 years (mean±SD, 9.8±6.7 years). CVH was measured as Life's Essential 8 (blood pressure, body mass index, glucose, non-high-density lipoprotein cholesterol, smoking, physical activity, diet, sleep). Hierarchical linear mixed models identified predictors of cognitive decline with progressive levels of adjustment. There was a decline in processing speed that was explained by race, age, and the 3-way interaction of race, CVH, and time ( F
1,4308 =8.8, P =0.003). CVH was unrelated to decline in White women but in Black women poorer CVH was associated with greater decline. Working memory did not decline in the total cohort, by race, or by CVH., Conclusions: In midlife Black women, CVH promotion may be a target for preventing the beginnings of cognitive decline, thereby enhancing independent living with aging.- Published
- 2024
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