27,780 Alzheimer's and dementia studies in plain English, each scored out of 100.
Perceived greater access to greenspaces (estimate = 2.83, 95% CI = 1.40–4.26) and greater time in neighborhood greenspaces were associated with greater RI scores (estimate = 2.30, 95% CI = 1.24–3.35). 5 key findings →
Design: cross-sectional Participants: 162 Evidence: moderate
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For amyloid positive individuals Aβ42/Aβ40, glial fibrillary acidic protein and p-tau181 were the top predictors of cognitive decline while Aβ42/Aβ40 was prominent for amyloid negative participants across all age groups. 5 key findings →
Design: cross-sectional Participants: 1,185 Evidence: moderate
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We examined factors associated with self-reported medication nonadherence in well-characterized community-based cohort of older adults. 5 key findings →
Design: cohort study Participants: 5,164 Evidence: moderate
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To efficiently implement plasma and cerebrospinal fluid (CSF) biomarkers for staging and prognosis of Alzheimer disease (AD), we must understand their dynamics across disease progression. 2 key findings →
Evidence: low
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Overall, 430 093 participants were included. 5 key findings →
Design: cohort study Participants: 93 Evidence: moderate
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Significant interactions between amyloid status and modifiable risk factors were observed for diabetes (adjusted β = -0.206, p = 0.032), high cholesterol (adjusted β = -0.155, p < 0.001), and physical inactivity (adjusted β = -0.161, p = 0.046), indicating combined effects rather than additive effects on cognitive decline among Aβ+ individuals. 5 key findings →
Design: cohort study Participants: 1,707 Evidence: moderate
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Time is an under-recognised social determinant of brain health, and is potentially as important as education or income for dementia risk. 5 key findings →
Design: longitudinal study Evidence: moderate
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Across imputed data sets, a median of 2,777 eligible individuals were included, with a median of 664 receiving a new HA prescription. 5 key findings →
Evidence: high
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Lifestyle behavioral change is a critical component for secondary prevention of stroke. 1 key finding →
Design: longitudinal study Evidence: high
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BackgroundWith the changing demographic landscape in most countries worldwide, early identification of cognitive impairment in multicultural populations is increasingly relevant. 2 key findings →
Design: cross-sectional Participants: 187 Evidence: low
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The complexity of neurodegenerative disorders necessitates an integrative approach that incorporates morphological, functional, and molecular biomarkers. 3 key findings →
Participants: 279 Evidence: moderate
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Due to rapid population aging, the number of Chileans with dementia is estimated to triple by 2050. 1 key finding →
Design: longitudinal study Participants: 1,778 Evidence: moderate
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TabCAT tests showed good convergent validity with traditional pen-and-paper tests. 5 key findings →
Design: longitudinal study Participants: 146 Evidence: moderate
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Greater intra-group heterogeneity in ATN abnormality patterns was observed in more severe clinical stages of AD. 5 key findings →
Design: cross-sectional Participants: 665 Evidence: low
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Pathophysiologic-constrained ADL provided interpretable, personalized pathologic maps and an AI-derived ADAD score that more closely linked PET pathologic abnormalities with multimodal clinical measures. © RSNA, 2026 3 key findings →
Design: longitudinal study Participants: 7,457 Evidence: moderate
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Limited studies focusing on the intersectional determinants of preferences of ethnic minority groups or post-migrants with dementia were found. 5 key findings →
Design: systematic review Evidence: high
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The cultural tailoring of interventions is promising to address disparities in dementia care and interventions in underserved communities. 4 key findings →
Design: randomized controlled trial Evidence: high
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A total of 400 103 AF and dementia-related deaths were recorded between 2000 and 2020. 5 key findings →
Participants: 400 Evidence: low
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Midlife individuals who experienced HDP had lower regional CBF and reduced white matter microstructural integrity, compared with those with no adverse pregnancy outcomes. 5 key findings →
Design: prospective cohort Participants: 81 Evidence: moderate
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Over a mean follow-up of 14.6 years, 7.7% of the participants (n = 614) developed dementia. 5 key findings →
Participants: 7,960 Evidence: moderate
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A total of 5,129 participants were included in the study (59% female; 22% identified as Black; mean (standard deviation) age at visit 5 of 75 (5) years). 5 key findings →
Participants: 1,026 Evidence: low
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This Viewpoint discusses age-specific dementia prevalence rates, their decline during 40 years, and the subsequent effect on dementia incidence. 1 key finding →
Evidence: low
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Among 331,731 participants (mean ± SD age, 56.53 ± 8.1 years; 156,762 [47.26 %] male), 4413 (1.33 %) developed dementia during a mean follow-up of 12.8 years. 5 key findings →
Design: cohort study Participants: 331,731 Evidence: moderate
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According to the results, 31.4% of the sample consisted of subjects without cognitive impairment, 40.5% were identified as possible cases of MCI, and 24.9% as possible cases of dementia. 5 key findings →
Design: cross-sectional Participants: 385 Evidence: low
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9118 references were identified, and 103 articles (from 78 studies) published between 1992 and 2024 were included. 5 key findings →
Design: case-control study Evidence: moderate
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Free full text links and the Full text may need a subscription label come from Unpaywall, Europe PMC and OpenAlex records of free copies, checked 10 Oct 2026. A study with neither is unknown, not paywalled.
This is alzhub's own score. It is not an official metric, not an impact factor, and no journal, publisher or ranking body endorses it. We built it so that a reader who is not a scientist can tell a landmark trial from a conference abstract without having to already know the difference. Every point comes from one of 20 components, all of them printed on the study itself, so you can disagree with our arithmetic rather than having to trust the total.
Journals are placed in ordered tiers, never given a numeric impact factor — we could not verify current impact factors from a source we control, and an invented one would be worse than none. Tier 1 is the top-tier general journals (NEJM, The Lancet, JAMA, Nature, Science, Nature Medicine); tier 2 is the leading specialty journals; tier 3 is every other peer-reviewed journal. A separate part scores how much the journal's own papers are cited, which tells the tier-3 journals apart.
Two rules we don't bend. First, we never fill in a missing value: if a record does not state a sample size or a design, that component scores zero, and if we simply have no data for a part, such as a citation count, that part is left out and the study is scored on the parts we could check. The study card says which. Second, anything that is not a peer-reviewed article is capped at 16/100 and carries a warning chip — so a conference abstract or a company press release can never outrank a peer-reviewed paper, no matter how good it looks.
We rank a rigorous null result — a good trial showing that something does not work — above an early positive finding. Someone deciding whether to buy a supplement is served by that, and the rigour is already counted by the design and journal components.
The score is computed from the published data alone and is reproducible: the same file always yields the same numbers.
See the whole rubric drawn out → — four charts covering all 27,780 studies: how the scores are spread and where the cap bites, which of the 20 components the library is strong and weak on, which subjects rest on stronger evidence, and what kinds of study each subject is actually built from.
This is a large sample of the Alzheimer's literature, not an exhaustive index of it. It holds 27,780 records, built mostly from automated pulls of Europe PMC (61.1% of the library) and OpenAlex (18.3%), plus smaller pulls from PubMed, Crossref and medRxiv. If a study, a drug, or a finding isn't here, that is not evidence it doesn't exist in the literature — it may simply not have been pulled in yet.
1,034 records (3.7% of the library) are not peer-reviewed — 962 of those are preprints posted before any journal review, and the rest are conference abstracts, regulatory notices and reports. Every study card on this page states its status plainly, and the score above is capped for anything that isn't a peer-reviewed article.
See the full, machine-readable breakdown of this library's coverage →