31,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
The association between metabolic syndrome (MetS) and incident dementia remains inconclusive. 4 key findings →
Design: prospective cohort Participants: 5,255 Evidence: moderate
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The average life expectancy has increased substantially in the past few decades in most industrialized countries; however, not all of the increased life expectancy is being spent in optimal health, especially among individuals with low socioeconomic status. 4 key findings →
Design: cohort study Participants: 135 Evidence: moderate
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Healthy cognitive ageing is a societal and public health priority. 4 key findings →
Design: cohort study Participants: 22,059 Evidence: moderate
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The clinical value of current multifactorial algorithms for individualized assessment of dementia risk remains unclear. 4 key findings →
Design: cohort study Participants: 4,865 Evidence: moderate
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We tested the hypothesis that a causal relationship exists between systolic BP (SBP) and/or diastolic BP (DBP) and risk of Alzheimer's disease (AD). 4 key findings →
Design: meta-analysis Participants: 299,024 Evidence: high
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Socioeconomic factors and genetic predisposition are established risk factors for dementia. 4 key findings →
Design: cohort study Participants: 196,368 Evidence: moderate
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Individual conditions have been identified as risk factors for dementia; however, it is important to consider the role of multimorbidity, as conditions often co-occur. 4 key findings →
Design: cohort study Participants: 960 Evidence: moderate
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Whether this results in an increased risk for dementia remains unclear. 4 key findings →
Design: prospective cohort Participants: 3,975 Evidence: moderate
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Data were drawn from the UK Biobank cohort study with a total of 228 223 participants with Hospital Episodes Statistics and primary care linkage health records. 4 key findings →
Design: cohort study Participants: 2,378 Evidence: moderate
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A greater sense of meaning and purpose in life is associated with lower dementia risk. 4 key findings →
Design: meta-analysis Participants: 153,445 Evidence: high
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Epidemiological evidence regarding the association between atrial fibrillation (AF) onset age and risk of incident dementia remains unexplored. 4 key findings →
Design: cohort study Participants: 746 Evidence: moderate
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To assess age-, sex-, and subtype-specific incidence rates of dementia and to calculate the risk of dementia, the authors performed a large, community-based, prospective cohort study on dementia as part of the Rotterdam Study. 4 key findings →
Design: cohort study Participants: 7,046 Evidence: moderate
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The Rotterdam Study previously found that higher dietary intakes of vitamins E and C related to lower risk of dementia and Alzheimer disease (AD) over 6 years of follow-up. 4 key findings →
Design: cohort study Participants: 5,395 Evidence: moderate
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Sex differences in major cardiovascular risk factors for incident (fatal or non-fatal) all-cause dementia were assessed in the UK Biobank. 4 key findings →
Participants: 502,226 Evidence: low
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Low hemoglobin and anemia are associated with cognitive impairment and Alzheimer's disease (AD). 4 key findings →
Design: longitudinal study Participants: 6,833 Evidence: moderate
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Advanced glycation end products (AGEs) and their receptor (RAGE) are implicated in the pathophysiological processes of dementia and potentially underlie the association of diabetes with neurodegeneration. 4 key findings →
Design: cohort study Participants: 1,021 Evidence: moderate
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In addition, the underlying mechanism and driven mediators are largely unknown. 4 key findings →
Design: cohort study Participants: 154,549 Evidence: moderate
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Studies of long-term cognitive change should account for the potential effects of education on the outcome, since some studies have demonstrated an association of education with dementia risk. 4 key findings →
Design: cohort study Participants: 14,020 Evidence: moderate
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Social determinants of health (SDHs) are the primary drivers of preventable health inequities, and the associations between SDHs and health outcomes among individuals with type 2 diabetes remain unclear. 4 key findings →
Design: cohort study Participants: 17 Evidence: moderate
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Identifying independent and interactive associations of a wide range of diseases and multimorbidity and apolipoprotein E4 (APOE4) with dementia may help promote cognitive health. 4 key findings →
Design: cohort study Participants: 471,485 Evidence: moderate
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The association between vascular risk factors and dementia varies with age, making generalizability of dementia risk prediction rules to individuals of different ages challenging. 4 key findings →
Participants: 4,899 Evidence: moderate
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However, not all plant-based foods are necessarily beneficial for dementia or depression. 4 key findings →
Design: cohort study Participants: 180,532 Evidence: moderate
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We observed 234 cases of all-cause dementia over 10 years of follow-up. 4 key findings →
Participants: 2,457 Evidence: low
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Numerous studies have investigated the impacts of common types of chronic pain (CP) on patients' cognitive function and observed that CP was associated with later dementia. 4 key findings →
Participants: 354,943 Evidence: moderate
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Differences between users and non-users of insulin, metformin and sulfonylurea were assessed in each cohort for cognitive and brain MRI measures using linear regression models, and cognitive decline and dementia/AD risk using mixed effect models and Cox regression analyses, respectively. 4 key findings →
Participants: 3,590 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 31,380 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 31,380 records, built mostly from automated pulls of Europe PMC (65.6% of the library) and OpenAlex (16.2%), 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.
1,048 records (3.3% of the library) are not peer-reviewed — 973 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 →
Newest studies, as a dated timeline → Atom feed Where this research is being discussed: events