Factors impacting on time to diagnosis vary with the stage of diagnosis in YOD. 4 key findings →
Participants: 47 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Research
27,780 Alzheimer's and dementia studies in plain English, each scored out of 100.
52/100
Adjustment to admission to residential care can be difficult for people with dementia and their family caregivers. 1 key finding →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source
The cognitive deficits in VaD and VCI are characterized by disturbance of frontal functions, with less verbal memory impairment. 2 key findings →
Participants: 170 Evidence: low
Full summary, score breakdown and related studies → Original source
52/100
Metformin use was associated with impaired cognitive performance. 4 key findings →
Participants: 480 Evidence: low
Full summary, score breakdown and related studies → Original source
50/100
Microstructural white matter changes are present in cognitively normal individuals in the pre-aMCI stage, and may serve as a potential imaging marker of early AD-related brain changes. 1 key finding →
Participants: 193 Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
The regression models showed that older age, education levels, language spoken at home and in country of birth, socioeconomic status (SES), occupation, sex, and presence of a mood disorder made significant and unique contributions to performance on the MMSE. 4 key findings →
Participants: 1,792 Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
The General Practitioner Assessment of Cognition (GPCOG) consists of cognitive test items and historical questions asked of an informant. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Family caregivers of people with dementia, often called the invisible second patients, are critical to the quality of life of the care recipients. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Both severity ("how far") and rate of deterioration ("how fast") influence time to NHA and death. 4 key findings →
Participants: 91 Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
46/100
Nursing home staff tended to perceive residents in more negative than positive ways. 3 key findings →
Design: cross-sectional Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
The majority of respondents were geriatric psychiatrists (58%). 2 key findings →
Participants: 334 Evidence: low
Full summary, score breakdown and related studies → Original source
To estimate dementia incidence rates using Australian administrative datasets and compare the characteristics of people identified with dementia across different datasets. 5 key findings →
Evidence: moderate
Full summary, score breakdown and related studies → Original source
Retrospective analysis of clock drawing performance using three published scoring methods (Shulman, Sunderland and Wolf-Klein). 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
High level of complex mental activity across the lifespan was correlated with a reduced rate of hippocampal atrophy. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
The importance of better care integration is emphasized in many national dementia plans. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
The MBI-C provides the first measure specifically developed to assess the MBI construct as explicitly described in the criteria. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
Agitation and aggression are frequently occurring and distressing behavioral and psychological symptoms of dementia (BPSD). 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
Alzheimer's disease (AD) is a complex progressive brain degenerative disorder that has effects on multiple cerebral systems. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
BPSD are ubiquitous in nursing home residents. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Where “Free full text” comes from
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
How the 0–100 score works — and why some entries are capped
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.
- Journal tier up to 10 pts
- Journal's citation record up to 4 pts
- Study design up to 12 pts
- Strength of evidence up to 5 pts
- Peer-review validation up to 10 pts
- How recent up to 5 pts
- Sample size up to 4 pts
- Effect reported up to 3 pts
- Studied in people up to 3 pts
- Randomised / blinded up to 2 pts
- Times cited up to 7 pts
- Citations per year up to 5 pts
- Impact for its field and year up to 6 pts
- Cited by studies here up to 6 pts
- Still being cited up to 4 pts
- Senior author's track record up to 4 pts
- Institution's track record up to 3 pts
- Multi-centre collaboration up to 3 pts
- Indexed in PubMed up to 2 pts
- Free to read up to 2 pts
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 27,780 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.
What this library is — and isn't
This is a large sample of the Alzheimer's literature, not an exhaustive index of it. It holds 27,780 records, built mostly from automated pulls of Europe PMC (61.1% of the library) and OpenAlex (18.3%), 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.
1,034 records (3.7% 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 →