27,780 Alzheimer's and dementia studies in plain English, each scored out of 100.
This study estimated the prevalence of dementia in 2,285 new admissions age 65+ to a statewide sample of 59 nursing homes in Maryland, 1992-1995. 3 key findings →
Evidence: low
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Risk of dementia by age 80 was more pronounced for Hispanic and black men compared with white men. 2 key findings →
Evidence: low
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We evaluated the psychometric properties of the 12-item interviewer-administered screener version of the World Health Organization Disability Assessment Schedule-version II (WHODAS II) among older people living in seven low- and middle-income countries. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Future educational supports for GPs need to be developed which concentrate on these areas. 1 key finding →
Participants: 300 Evidence: low
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Dementia is an important cause of morbidity in the geriatric population in this community, where families take responsibility for the care of relatives with dementia. 3 key findings →
Participants: 2,067 Evidence: low
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Dementia is under-diagnosed to a greater extent among ethnic minorities in the age group 60 years and older but is over-diagnosed in the age group younger than 60 years. 3 key findings →
Participants: 219 Evidence: low
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Cognitive assessment is a basic element for dementia diagnosis. 2 key findings →
Design: cross-sectional Evidence: low
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Over the next 25 years, the prevalence of dementia in people older than 65 years is projected to exceed 25% nationwide, including metropolitan areas. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The prevalence of dementia is increasing in our aging population at an alarming rate. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Language impairment is an important biomarker of neurodegenerative disorders such as Alzheimer's disease (AD). 1 key finding →
Evidence: low
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Alzheimer's disease and related dementias (ADRD) are highly prevalent conditions, and prior efforts to develop predictive models have relied on demographic and clinical risk factors using traditional logistical regression methods. 5 key findings →
Evidence: moderate
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Although preclinical dementia is characterized by decline in cognition and daily functioning, little is known on their temporal sequence. 4 key findings →
Evidence: low
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To investigate the cognitive capacities of a cohort of ischaemic or haemorrhagic stroke survivors and to identify the clinical determinants of post-stroke cognitive impairment, we evaluated 237 patients admitted to a Stroke Unit (mean age 59; SD=12.7). 4 key findings →
Participants: 237 Evidence: moderate
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Traumatic brain injury (TBI) in early to mid-life is associated with an increased risk of dementia in late life. 4 key findings →
Participants: 62 Evidence: low
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Individuals over 80 years of age represent the most rapidly growing segment of the population, and late-life dementia has become a major public health concern worldwide. 4 key findings →
Evidence: low
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388,899 deaths were included. Most people died in care homes (55.3%) or hospitals (39.6%). 5 key findings →
Evidence: low
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Participants identified as non-Hispanic White (50%), non-Hispanic Black (30%), or Hispanic (13%). 5 key findings →
Design: cross-sectional Participants: 192 Evidence: low
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An international expert panel convened to evaluate nutrition-based approaches to brain health and dementia prevention. 2 key findings →
Evidence: low
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Vascular dementia (VaD) is the second leading cause of dementia after Alzheimer's disease (AD). 1 key finding →
Design: narrative review Evidence: low
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Dementia is a leading health policy challenge, with cases expected to triple by 2050, particularly in low- and middle-income countries. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Diagnostic challenges stem from overlapping symptoms of co-occurring neurodevelopmental and psychiatric conditions, rendering standard dementia tools insufficient. 5 key findings →
Design: longitudinal study Evidence: moderate
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FAB-Ch scores were significantly lower in individuals with dementia compared to controls (p < .001). 5 key findings →
Participants: 288 Evidence: low
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Depression was a strong risk factor for incident dementia with an OR of 1.76 (95% CI 1.63 to 1.90), a relationship which was found to be specific to depression rather than commonly proposed confounders. 5 key findings →
Participants: 557 Evidence: low
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Of the 1216 cases reported, Alzheimer's disease (60.5%) was the most common subtype, followed by vascular dementia (24.5%). 5 key findings →
Evidence: moderate
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Frontotemporal dementia (FTD) is a neurodegenerative disorder primarily affecting the frontal and temporal lobes, leading to significant impairments in executive function, social behavior, and emotional regulation. 3 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
10 of the 1,233 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 10. The same 10 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 27,780 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.
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 →