27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
There were 2427 new residents of assisted living who were matched to 9708 home care recipients [mean (SD) age 85.5 (6.02) years, 72% female]. 5 key findings →
Design: case-control study Evidence: moderate
Full summary, score breakdown and related studies → Original source
During follow-up, 203 cases of hospitalisation with dementia were identified. 5 key findings →
Participants: 151 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
The results show that routinely collected primary care data may be used to identify undiagnosed dementia. 3 key findings →
Design: case-control study Participants: 483 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
The sample included 2 619 464 patients (mean [SD] age, 81.3 [8.6] years; 61% women; 87% were White; 8% were Black; 22% with ADRD). 5 key findings →
Design: cross-sectional Participants: 464 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
In our dataset search, we identified 108 910 people with a record indicating dementia at any time. 5 key findings →
Design: cohort study Participants: 9,819 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Residents' QoL was negatively associated with advanced dementia, PDU, and NPS. 5 key findings →
Design: cross-sectional Participants: 207 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The ADRQL is a valid indicator of QOL in NH residents with advanced dementia. 2 key findings →
Design: cross-sectional Participants: 119 Evidence: moderate
Full summary, score breakdown and related studies → Original source
The original mortality risk score predicted 6-month mortality with reasonable accuracy in 2 validation cohorts of nursing home residents with advanced dementia. 2 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source
Dementia diagnoses were a significant predictor of 30-day ED revisits. 5 key findings →
Participants: 249 Evidence: low
Full summary, score breakdown and related studies → Original source
Setup and daily use of mHealth technology appears to be feasible for a person with cognitive impairment with the help of a partner, but increasing daily step counts over 8 weeks was not achieved. 1 key finding →
Participants: 21 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Use of potentially inappropriate medications in Australian nursing home residents with advanced dementia is common. 3 key findings →
Design: randomized controlled trial Participants: 65 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Observational population studies indicate that prevention of dementia and cognitive decline is being accomplished, possibly as an unintended result of better vascular prevention and healthier lifestyles. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Caregivers who institutionalized their relative reported depressive symptoms and anxiety to be as high as they were while in-home caregivers. 4 key findings →
Participants: 180 Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
SubD was more prevalent than MDD in these primary care settings. 3 key findings →
Participants: 221 Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
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
Full summary, score breakdown and related studies → Original source Free full text
Biomarkers for the early detection of dementia risk hold promise for better disease monitoring and targeted interventions. 4 key findings →
Participants: 1,140 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The average detection rates for mild cognitive impairment is 0.08 (interquartile range=0.00-0.02) for both clinicians and practices, suggesting that only about 8% of expected cases were diagnosed on average. 3 key findings →
Participants: 25 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
ADRD prevalence was 5.5%. A total of 25,278 individuals had an incident ADRD code (rate: 1.2%) over the study period-nearly half during a hospital-based encounter. 5 key findings →
Participants: 25,278 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
LIGHT will provide insight into the implementation and (cost-)effectiveness of a lifestyle intervention for indicated prevention in a memory clinic setting. 2 key findings →
Design: randomized controlled trial Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Compared with non-dementia patients, hospitalised dementia patients have higher rates of potentially preventable complications that might be responsive to nursing interventions. 4 key findings →
Design: retrospective cohort Evidence: moderate
Full summary, score breakdown and related studies → Original source
BPSD are common in older hospital patients with dementia and associated with considerable distress in nursing staff, as well as a wide range of special treatments needs and additional behavioural and medical complications. 5 key findings →
Design: cross-sectional Participants: 1,469 Evidence: low
Full summary, score breakdown and related studies → Original source
Direct measurement of prevalence of palliative care needs on a population basis is feasible. 1 key finding →
Design: cross-sectional Participants: 785 Evidence: low
Full summary, score breakdown and related studies → Original source
HCPs of NH patients with advanced dementia can most commonly expect to encounter medical decisions relating to feeding problems, infections, and pain. 5 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source
For most institutionalized persons with advanced dementia, a decision to forgo hospitalization is not made until death is imminent. 5 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source
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 →