27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
Alive PWD (n = 804) were 2.36 times more likely to have an overnight hospital stay (p = 0.004) and 1.96 times more likely to have multiple hospitalizations when caregivers found it physically difficult to provide care (p = 0.011). 5 key findings →
Design: cross-sectional Participants: 899 Evidence: low
Full summary, score breakdown and related studies → Original source
Plasma p-tau217 and p-tau217/Aβ42 concentrations demonstrated robust diagnostic performance in a heterogeneous clinical cohort; interpretation requires consideration of kidney function. 5 key findings →
Design: cross-sectional Participants: 509 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Delirium is a distressing neurocognitive disorder recently linked to sleep disturbances. 4 key findings →
Design: longitudinal study Participants: 818 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
A total of 1780 major operations (representing 9 556 171 survey-weighted operations nationally) were identified from 1477 community-living participants; mean (SD) age was 79.5 (7.0) years, with 56% being female. 5 key findings →
Design: cohort study Participants: 1,780 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
From 1996 through 2008, 5.55% of hospitalized patients resided in a nursing home 6 months later compared with 0.54% of nonhospitalized control patients. 5 key findings →
Design: retrospective cohort Participants: 762,243 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Portable, low‐field imaging could be useful for identifying moderate to severe WMHs. 4 key findings →
Design: prospective cohort Participants: 33 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Overall, hospice care in NHs does not appear to increase government expenditures. 4 key findings →
Design: cohort study Participants: 5,774 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Residence in an SCU is associated with some, but not all, markers of better quality end-of-life care among nursing home residents with advanced dementia. 3 key findings →
Design: longitudinal study Participants: 43 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Rural residence was also associated with lower risk of more than 10 days of hospitalization and ICU admission. 5 key findings →
Design: cohort study Participants: 3,710 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Hospice enrollment results in lower combined Medicare/Medicaid expenditures in the last month of life, particularly among short-stay NH residents. 3 key findings →
Design: cohort study Participants: 5,774 Evidence: moderate
Full summary, score breakdown and related studies → Original source
The most common reasons for hospitalization in LBD are potentially modifiable. 3 key findings →
Design: cohort study Participants: 178 Evidence: moderate
Full summary, score breakdown and related studies → Original source
After the clinical implementation of amyloid-β-targeting therapies for people with cognitive impairment due to Alzheimer's disease (AD), there is an urgent need to efficiently identify this patient population in primary care. 4 key findings →
Participants: 223 Evidence: moderate
Full summary, score breakdown and related studies → Original source
The analysis of the comorbidities associated with an index disease (e.g., dementia) must not be exclusively based on prevalence rates, but rather on methodologies that allow the discovery of non-random associations between diseases. 4 key findings →
Design: cross-sectional Participants: 72,815 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Our results showed a positive association between exposure to NOx and O 3 and hospitalization for dementia and a negative association between NO 2 exposure and hospitalization for dementia. 5 key findings →
Participants: 350,844 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Stress was more often reported by care providers who had been working for 1 to 2 years (compared with longer); in addition, those who had been working for 1 to 2 years were more likely to espouse hopeful or person-centered attitudes than those who had been working for a longer period of time. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
The 2-year rate of infection was 1.20 episodes per 100 resident days, and the hospitalization rate for infection was 0.17 admissions per 100 resident days. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Even in persons who are currently nondisabled, a simple measure of lower extremity performance is predictive of subsequent hospitalization, especially for geriatric conditions. 2 key findings →
Design: cohort study Participants: 3,381 Evidence: moderate
Full summary, score breakdown and related studies → Original source
The use of conventional anti-dementia drugs is associated with a lower mortality in nursing home residents with dementia and should be widely used in this population. 4 key findings →
Design: cohort Participants: 25,358 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Individuals with cannabis use severe enough to require hospital-based care were at increased risk of a new dementia diagnosis compared with those with all-cause hospital-based care or the general population. 5 key findings →
Design: cohort Participants: 6,086,794 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Emotion-oriented care is more effective with regard to the emotional adaptation in nursing homes of persons with a mild to moderate dementia. 2 key findings →
Evidence: high
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Inclusion and exclusion criteria were met in 303 patients, and 25 (8.3%) presented to the ED with delirium. 1 key finding →
Design: cross-sectional Participants: 303 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The 4AT is a new test for rapid screening of delirium in routine clinical practice. 1 key finding →
Participants: 29 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
There were 140,055 subjects in the 1998-1999 cohort and 146,328 in the 1999-2000 cohort, of which 55.5 percent and 59.7 percent, respectively, were immunized. 4 key findings →
Participants: 140,055 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Agreement for detection of SS was excellent (unweighted κ of 0.81). 2 key findings →
Design: longitudinal study Participants: 809 Evidence: moderate
Full summary, score breakdown and related studies → Original source Full text may need a subscription
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
9 of the 973 studies in this tag, picked by a fixed rule (a hash of each study's address), not by score or date; each page of this list shows a different 9. The same 9 appear here every time.
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 →