ArticleAlzheimer's & dementia. Behavior & socioeconomics of aging2026
Association of residential neighborhood disadvantage with amyloid PET positivity among cognitively impaired individuals.
Article in Alzheimer's & dementia. Behavior & socioeconomics of aging, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionRelationships between Alzheimer's disease neuropathology, residential neighborhood, and cognitive impairment remain incompletely understood.
methodsWe examined whether residence within a disadvantaged neighborhood was associated with amyloid positron emission tomography (PET) positivity. We used data from the observational, multisite, Imaging Dementia-Evidence for Amyloid Scanning study that included cognitively impaired Medicare beneficiaries. Our secondary analysis examined multivariable-adjusted associations between neighborhood disadvantage (measured by Area Deprivation Index [ADI] deciles 1-90 vs. 91-100 representing greatest disadvantage) and amyloid PET positivity.
resultsAmong 15,346 White, 829 Latino, 637 Black/African American, and 321 Asian individuals, 51% were female, mean age was 75.7 years, 535 (3.8%) resided in ADI 91 to 100 decile, and 61.6% were amyloid PET positive. The ADI 91-100 decile was associated with lower odds of PET positivity by visual interpretation (odds ratio [OR] 0.80, 95% confidence interval [CI] 0.67-0.96,
conclusionResidence in the most disadvantaged neighborhoods may be associated with lower amyloid pathology in cognitively impaired individuals.
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