Abstract
Longitudinal studies examining the association of loneliness with cognitive decline rarely include older members of racial minorities. Guided by a Minority Stress Framework, we used Waves 2 and 3 from the National Social Life, Health, and Aging Project to assess whether loneliness (UCLA-3-items) at W2 predicts cognitive decline (Chicago Cognitive Functioning Measure) among US African-American, Latino, and white older adults (ages≥60). We included interactions of W2 loneliness with race in examining changes in cognitive functioning. Estimates were (N=1,950) adjusted for demographics, chronic disease, depression, and social connectedness. In all groups, loneliness was positively associated with greater global cognitive decline over the 5-year interval. However, analyses of different domains of cognitive functioning (e.g., executive functioning, memory) suggested that this association differs by cognitive domain and race. Future research on interventions to prevent cognitive decline should consider targeting loneliness, include diverse older adults, and examine global and specific domains of cognitive functioning.
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