ArticleAlzheimer's & dementia : the journal of the Alzheimer's Association2025
The associations between midlife neighborhood socioeconomic conditions and late-life cognitive trajectories: The mediating roles of hemoglobin A1c and blood pressure.
Article in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Shichangpu-Xiyangshen Herb Extract Alleviates Cognitive Dysfunction in Type 1 Diabetes Through Metabolism of Arachidonic Acid Cyclooxygenase and Lipoxygenase.Molecules (Basel, Switzerland) · 2026Article
- Midlife and late-life neighborhood socioeconomic status and cognitive function in later life: Differences by race.Annals of epidemiology · 2026Article
- The associations between midlife neighborhood socioeconomic conditions and late-life cognitive trajectories: The mediating roles of hemoglobin A1c and blood pressure.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025Article
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Authors and funding
6 authors.
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Abstract
introductionNeighborhood socioeconomic conditions (NSECs) are recognized determinants of late-life cognitive health; mechanisms remain unclear but may include cardiometabolic factors, which have been linked to cognitive decline and dementia.
methodsCausal mediation analyses were conducted to examine whether cardiometabolic factors (glycated hemoglobin-HbA1c, diabetes, blood pressure, hypertension) each mediate the association between midlife NSECs (tract-level disadvantage and affluence) and late-life cognitive trajectories (maintainers, minor decliners, major decliners) in a nationally representative sample of adults aged 50+ (N = 4304).
resultsWorse midlife NSECs were associated with an increased risk of minor and major cognitive decline, as well as elevated and diabetic HbA1c levels. Diabetes status, rather than HbA1c, partially mediated the association, while neither blood pressure nor hypertension status had significant mediation effects. DISCUSSION: Findings highlight a metabolic pathway linking NSECs to late-life cognitive function, providing implications for interventions aimed at reducing neighborhood disparities and promoting cognitive health. HIGHLIGHTS: Nationally representative cohort of adults aged 50+. Longitudinal change in general cognitive function measured up to 8 years. Mediation mechanisms included hemoglobin A1c (HbA1c), diabetes, blood pressure, and hypertension. Worse neighborhood socioeconomic conditions were linked to cognitive decline and elevated and diabetic levels of HbA1c. Subsequent diabetes incidence partially mediated the association between midlife neighborhood socioeconomic conditions and later-life major cognitive decline.
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