31,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
Dementia diagnosis recording in general hospitals is increasing but remains less likely in some groups. 1 key finding →
Design: cohort study Participants: 21,387 Evidence: moderate
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The cohort sample included 5058 beneficiaries with dementia (mean [SD] age, 85.5 [8.0] years; 3038 women [60.1%]; 809 [16.0%] non-Hispanic Black, 357 [7.1%] Hispanic, and 3892 non-Hispanic White respondents [76.9%]). 4 key findings →
Design: cohort study Participants: 5,058 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
A large proportion of the Medicare PD population resides in an LTCF. 2 key findings →
Design: cohort study Participants: 38,334 Evidence: moderate
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Among hospitalized older adults with serious illness, a pragmatic clinician-facing communication-priming intervention significantly improved documentation of goals-of-care discussions in the electronic health record, with a greater effect size in racially or ethnically minoritized patients. 3 key findings →
Participants: 3,918 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Clinicians treating people with a hip fracture should be vigilant towards post-operative delirium if their patients are older, have pre-existing cognitive impairment and poorer overall general health. 4 key findings →
Participants: 6,704 Evidence: low
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Age, sex, functional limitation, and malnutrition seem to be the strongest predictors of death for patients with Alzheimer's disease in nursing homes. 3 key findings →
Design: longitudinal study Participants: 9,264 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
The ARIC study enrolled 15,792 participants (27% Black) aged 45-64 years. 5 key findings →
Participants: 15,792 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Among 143 331 older adults with dementia (83 536 [58.3%] female; mean [SD] age, 83.8 [7.5] years), 1312 (0.9%) received a feeding tube in hospital and 142 019 (99.1%) did not. 5 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
A minority of NH residents with advanced dementia received hospice care. 3 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Variation in use of APMs in U.S. nursing homes based upon facility characteristics exemplifies the need for a more systematic protocol guiding the use of these medications, along with heightened regulatory policies and enforcement. 2 key findings →
Design: meta-analysis Evidence: high
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Directives to forgo hospitalization for U.S. NH residents with advanced dementia are uncommon and are associated with the organizational features of the facilities caring for them and the intensity of end-of-life care practiced in the region, as well as individual resident characteristics. 5 key findings →
Design: cross-sectional Participants: 91,521 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Reduced ED attendances in the first wave of the pandemic suggest opportunities for reducing low severity presentations to ED in the future, but also raise the possibility of harm from delayed or missed care. 4 key findings →
Participants: 243,667 Evidence: low
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The PRISM-PC questionnaire captures primary care patients' acceptance, perceived harms, and perceived benefits of dementia screening. 2 key findings →
Design: cross-sectional Participants: 315 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Previous studies have indicated a prevalence of dementia in older admissions of ∼42% in a single London teaching hospital, and 21% in four Queensland hospitals. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The benefits of expanding funding for Medicaid long-term care home and community-based services (HCBS) relative to institutional care are often taken as self-evident. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The study findings demonstrate high user satisfaction with telehealth in a rural memory clinic and the sound psychometric properties of the TeSS in this population. 2 key findings →
Participants: 223 Evidence: low
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The availability, accessibility and acceptability of services are critical factors in rural health service delivery. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Stroke is highly prevalent in long-term care. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Within the 440 included surveys, respondents particularly over-estimated frailty prevalence in older hospitalised patients, with two-thirds choosing between 41 and 80% prevalence, when the literature suggests only 23-46%, but paradoxically underestimated the frequency of frailty in people with delirium (more than three quarters of responses across 21-80%; literature suggests 71-93%). 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
IFAD activities led to substantial progress in dementia care services, with memory clinics, residential care facilities and daycare centres mapped, revealing regional disparities in service provision. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
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
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