Observational studyJournal of Alzheimer's disease : JAD2025
Association between education and rate of cognitive decline among individuals with Alzheimer's disease: A multi-national European observational study.
Observational study in Journal of Alzheimer's disease : JAD, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Systematic review of the association between life-course socioeconomic status and late-life cognitive decline.Journal of epidemiology and community health · 2026Pooled it
- Epigenetic g predicts cognitive function in a diverse, nationally representative sample of older adults.Clinical epigenetics · 2026Article
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
BackgroundThe cognitive reserve (CR) hypothesis presumes higher tolerance of Alzheimer's disease (AD)-related pathology without functional decline for those with high education and more rapid decline after AD onset. Evidence supporting the second part of the hypothesis has been largely confined to U.S.-based studies.ObjectiveTo assess the relationship between education and cognitive decline in a multi-national European cohort of older adults living with AD.MethodsWe analyzed data from participants recruited into the GERAS-EU cohort study from AD clinics in the United Kingdom, Germany, and France. Linear mixed models were employed to assess the relationship between education (dichotomized using a 12-year cutoff) and cognitive decline measured by Mini-Mental State Examination (MMSE) scores during 1.5 to 3 years of follow-up, adjusting for age, sex, time from formal diagnosis, country, comorbidities, and AD treatment.ResultsA total of 1313 participants were analyzed, with mean age of 77.3 years (SD = 7.6), 715 (54.5%) females, and 378 (28.8%) with high education (≥12 years). Participants with high education experienced a 0.19-point greater decline (versus low education group) in MMSE scores every 6 months during follow-up (95% Confidence Interval: 0.03-0.35, p = 0.02). The secondary analyses (stratified by disease severity, sex, or country) showed a consistent direction of the association, although only significant in the severe AD group (p = 0.01).ConclusionsOur findings provide partial support for the CR hypothesis. Delayed AD diagnosis in individuals with high education may contribute to faster decline after diagnosis, highlighting the importance of sensitive screening for early signs of cognitive impairment.
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Registered trials
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