27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
Emerging digital tools have the potential to enable a new generation of qualitative and quantitative assessment of cognitive performance. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
We examined state variations in assisted living (AL) regulatory policies for admission/retention, staffing/training, medication management, and dementia care. 3 key findings →
Participants: 46 Evidence: low
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Cerebrovascular dysfunction contributes to the cognitive decline and dementia in Alzheimer's disease (AD), and may precede cerebral amyloid angiopathy and brain accumulation of the Alzheimer's neurotoxin, amyloid beta-peptide (Abeta). 4 key findings →
Evidence: low
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Before the COVID-19 pandemic, supply and demand forcast models predicted significant nursing shortages across the United States through 2030 due to both an aging patient population and nursing workforce.1, 2 However, during the pandemic, we saw an exodus of younger nurses in addition to early retirements. 5 key findings →
Participants: 100 Evidence: low
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Key independent variables included the interaction of NH quality (measured by 5‐star rating) and race (i.e. black versus white), and interaction of NH quality, race, and state Medicaid dementia‐related add‐on policies. 4 key findings →
Participants: 874,526 Evidence: low
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Four themes were derived from the data analysis as key areas of caregiving needs for Latinos: need to connect socially with others; need for resources to provide care; need to understand dementia and navigating existing resources and future care planning; and need for empathic, culturally congruent healthcare. 3 key findings →
Evidence: low
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Our findings show a low level of disenrollment. 5 key findings →
Participants: 14,657 Evidence: low
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State case fatality ranged from 3.32% in North Carolina to 9.26% in Connecticut, but for ALs in these states it was 12.89% and 31.59%, respectively. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
• Caregiver training helps dementia caregivers understand the disease and learn about caregiving skills. • Overall, about one in twelve informal dementia caregivers had taken any caregiving training. • Factors associated with the receipt of training included caregivers’ race, relationship, working status, and payer status, and care recipients’ level of assistance. 5 key findings →
Participants: 2,606 Evidence: low
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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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After accounting for individual and county level covariates, we found that a 10 percentage‐point increase in HCBS breadth among individuals with ADRD was associated with 1.1 percentage point reduction (P < 0.01) in the likelihood of NH placement. 3 key findings →
Participants: 365 Evidence: low
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In AD-like mice surgery induced acute changes in amyloid-β; perioperative treatment with pVNS effectively reduced amyloid-β load, plaque sphericity, and neuronal loss. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Differences between these results and those of previous studies may reflect differences in extent of surgical resection and/or differential sensitivity of psychometric measures of naming to word-finding problems. 2 key findings →
Evidence: low
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Dementia disproportionately affects Hispanic/Latino caregivers, and while some interventions exist, their consideration of intersectional factors remains unclear. 1 key finding →
Participants: 41 Evidence: low
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The study included 2.35 million beneficiaries in 2019 and 1.85 million in 2021. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Treatment outcomes in the DIADS-2 trial were not significantly influenced by genetic variation at the loci that were assessed. 3 key findings →
Evidence: high
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Since 2007, the Medicare Severity Diagnosis Related Groups classification system has favored billing codes for acute encephalopathy over delirium codes in determining hospital reimbursement and several quality-of-care value metrics, despite broad overlap between these sets of diagnostic codes. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Although the precise role of astrocytes in the pathogenesis of Alzheimer's disease (AD) is currently undefined, studies carried out at the molecular level may lead to new insights into the functioning of this class of brain cells in dementia. 5 key findings →
Evidence: low
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We found that COVID patients initially experienced substantially longer hospital stays (8.3 vs 4.6 days) and higher 30-day mortality (34% vs 5%) compared to patients without COVID. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Compared with waiver enrollees, PACE enrollees had 31% lower risk of long-term NH admission (p < .001). 3 key findings →
Evidence: low
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Early and accurate diagnosis of Alzheimer's disease (AD) will be key for effective personalized treatment plans ( Cummings, 2023). 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Studies were undertaken to assess the extent to which messenger RNA prepared from the postmortem Alzheimer's disease (AD) brain can be used for the successful preparation of a recombinant cDNA library. 2 key findings →
Evidence: low
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That word allows us to occupy the high moral ground but to no avail. 5 key findings →
Evidence: low
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The overall NH admission rate among HCBS users with ADRD was 67%, 55%, and 36% for whites, blacks, and others, respectively. 5 key findings →
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 →