Abstract
Abstract Background Neighborhood socio-economic conditions may increase Alzheimer's disease (AD) risk through amyloid, tau, atrophy or vascular pathways, potentially varying by genetic risk, race or ethnicity and sex. We examined associations between Area Deprivation Index (ADI) and cognition, AD pathology, gray matter (GM) and white matter hyperintensities (WMH) volume in cognitively unimpaired older adults by race or ethnicity, sex and APOE4 status. Method We included 1896 non-demented older adults from US POINTER study with available cognitive evaluations, ADI level ? a census?based neighborhood disadvantage metric (categorized as low, moderate and high) and a subsample with neuroimaging data (N = 806). Linear/logistic regressions were used to assess interactions of ADI with sex, race or ethnicity, and APOE4 on (1) the Preclinical Alzheimer's Cognitive Composite, (PACC-5), (2) MRI-derived GM volume meta-ROI (entorhinal, fusiform, parahippocampal, mid-temporal, inferior temporal), (3) WMH and (4) AD pathology (amyloid and tau PET), adjusted by age, sex and intracranial volume when appropriate. Result African American participants (p
| Original language | English (US) |
|---|---|
| Pages (from-to) | e105535 |
| Journal | Alzheimer's and Dementia |
| Volume | 21 |
| Issue number | S6 |
| DOIs | |
| State | Published - Dec 23 2025 |
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