Race and Incident Dementia Among Older Black and Older White Men.

The objective of this study was to determine if racial differences exist between older Non-Hispanic Black (NHB) and White (NHW) men in incident dementia over 11 years (2011-2022) in the National Health and Aging Trends Study (NHATS). The analytic sample included 2395 community-dwelling NHB and NHW men free of dementia at baseline who self-identified as Non-Hispanic Black (NHB) and White (NHW). Dementia was assessed at each visit using a validated algorithm developed by NHATS. After adjusting for demographics, place, and health-related characteristics in the Cox proportional hazard models, older NHB men had an increased risk of dementia (hazard ratio: 1.63, 95% confidence interval: [1.22-2.17]) compared to older NHW men. There may be unique factors such as stressors, patterns of genes, or perhaps nutrition that older NHB men possess and experience throughout their lives that contribute to the increased incident dementia.