Alzheimer's disease (AD) is a devastating form of dementia, with the number of affected individuals rising sharply. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
Alzheimer's disease (AD) is a devastating form of dementia, with the number of affected individuals rising sharply. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Higher socioeconomic status and increased frequency of physical activity were associated with a lower risk of both EOD and LOD. 5 key findings →
Design: case-control study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
The number of people living with dementia is expected to rise to 153 million cases globally by 2050. 4 key findings →
Participants: 17,500 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The Hong Kong Grocery Shopping Dialog Task (HK-GSDT) is a short and easy-to-administer cognitive test developed for quickly screening neurocognitive disorders (NCDs). 2 key findings →
Participants: 464 Evidence: low
Full summary, score breakdown and related studies → Original source
Air pollution is the greatest environmental threat to human health in the world today and is responsible for an estimated 7-9 million deaths annually. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
Since the first mitochondrial dysfunction was described in the 1960s, the medicine has advanced in its understanding the role mitochondria play in health, disease, and aging. 5 key findings →
Evidence: low
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The proteinopathy sporadic Parkinson's disease (sPD) is the second most frequent degenerative disorder of the human nervous system after Alzheimer's disease. 1 key finding →
Evidence: low
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Our framework highlights individual-, system-, and community-level factors and resources influencing person-centered eating and swallowing care for PLWD. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
A total of 47 adults aged 55+ years were recruited (50% male; 49% aged 60-69 years; 28% aged above 70 years), and 26 HCPs were involved, comprising dietitians (n = 8); geriatricians (n = 6); clinical therapists (n = 4); and nurses, pharmacists, catering managers and meal delivery service coordinators (n = 2 each). 5 key findings →
Participants: 47 Evidence: low
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This narrative review examines how socioeconomic disparities accelerate health decline in older adults. 1 key finding →
Design: narrative review Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Across the 591 counties in the Central Appalachian region, the average prevalence of ADRD from 2015- 2018 was 11.8%. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Environmental Burden Rank (EBR) across the sample (0.53±0.32) was near the 50th percentile nationally. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Rural patients with ADRD had 1.23 higher adjusted odds (P < .001) of going to the ED for a preventable visit compared to urban counterparts. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
14,292 patients were diagnosed with dementia over 2018–2021 (age 76.5+/−10.3 years; 53.1% female), with 96.3% linked to a census-tract-level ADI. 5 key findings →
Participants: 4,600 Evidence: low
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The incidence and prevalence of dementia are increasing. 1 key finding →
Design: longitudinal study Evidence: moderate
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Dual-related differences were significantly larger than race/ethnicity differences in PAC transitions. 5 key findings →
Evidence: low
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In adjusted analyses, walkability was not related to cognitive impairment in the full sample (OR = 0.89 (95% CI: 0.61‐1.28 for highest vs lowest quartile). 2 key findings →
Participants: 1,625 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
BackgroundThere are limited studies quantifying the extent to which neighborhood deprivation affects mortality in individuals living with Alzheimer's disease (AD) and AD-related dementias (AD/ADRD).ObjectiveTo quantify to what extent neighborhood deprivation affects adverse outcomes in individuals living with AD/ADRD.MethodsWe identified individuals with AD/ADRD using a 15% random sample of national Medicare fee-for-service beneficiaries. 1 key finding →
Evidence: moderate
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Dementia risk is influenced by biological and lifestyle factors as well as broader socioeconomic conditions; however, the extent to which socioeconomic deprivation creates structural exposures that affect cognitive aging remains unclear. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Higher teacher‐student ratio was associated with greater gray matter volume (β = 6.25, 95% CI: 1.57, 10.92) but was not associated hippocampal volume (β = ‐0.01, 95% CI: ‐0.14, 0.11), ventricular volume (β = ‐0.04, 95% CI: ‐0.13, 0.04), or white matter hyperintensity (β = ‐0.02, 95% CI: ‐0.31, 0.26) (Table 2). 5 key findings →
Participants: 450 Evidence: moderate
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Of 2 197 732 beneficiaries enrolled in D-SNPs in 2021, 881 736 (40.1%) were living in counties with aligned enrollment available and 251 305 (11.4%) enrolled. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Medicare-funded home health care (HH) is a crucial resource helping Persons with Dementia (PwD) meet their care needs while aging in place. 1 key finding →
Participants: 907,553 Evidence: low
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Neighborhood disadvantage is associated with education, health behaviors and mortality. 5 key findings →
Participants: 1,479 Evidence: moderate
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Of the 193,834 community-dwelling people with a new diagnosis of dementia, around 20% belonged to each material deprivation category. 5 key findings →
Design: cohort study Evidence: moderate
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Linear regression models showed that higher community deprivation on the ADI was associated with greater WMH volume, independently of age, sex, years of education, smoking, and time between study visits (beta=0.11, p =.028). 4 key findings →
Participants: 388 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
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. Show only studies that are free to read
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 27,380 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 27,380 records, built mostly from automated pulls of Europe PMC (60.6% of the library) and OpenAlex (18.6%), 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.
1,032 records (3.8% 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 →