27,780 Alzheimer's and dementia studies in plain English, each scored out of 100.
Accurate clinical staging of dementia in older subjects has not previously been achieved despite the use of such methods as psychometric testing, behavioural rating, and various combinations of simpler psychometric and behavioural evaluations. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Interrater reliability was high (median 0.98). 5 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
NH Black and Hispanic beneficiaries with dementia had higher disease course Medicare expenditures than NH Whites. 1 key finding →
Design: cohort Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Improving quality and delivery of care for people with Alzheimer disease and related dementias (ADRD) requires a comprehensive research agenda that encompasses the entire care continuum. 5 key findings →
Design: randomized controlled trial Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
An estimated 47 million people worldwide are living with dementia in 2015, and this number is projected to triple by 2050. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The notion of what qualifies as vascular dementia has varied greatly since the first mention of dementia after apoplexy in ancient literature. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Full neuropsychological testing should then be performed to confirm a diagnosis of HIV dementia. 1 key finding →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source Full text may need a subscription
A proportional increase in ADC compared with other ADIs and a marked increase in the median CD4 cell count at ADC diagnosis have occurred since the introduction of HAART in Australia. 5 key findings →
Participants: 1,049 Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
These findings cross-validate the previously published CDR-SB interpretative guidelines for staging dementia severity and extend those findings to a large heterogeneous sample of patients with dementia. 4 key findings →
Participants: 462 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Traumatic brain injury (TBI) leads to increased rates of dementia, including Alzheimer's disease. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Cognitive dysfunction is increasingly recognized as an important comorbidity of diabetes mellitus. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Prevalence of dementia subtypes in China is comparable with that in Western countries. 1 key finding →
Design: cross-sectional Participants: 99 Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
BPSD are universally present, bear correlates with dementia type and severity, and cause significant caregiver distress. 2 key findings →
Design: cross-sectional Participants: 107 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Black race was associated with greater dementia risk even after adjustment for education and other potential confounders. 4 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Full text may need a subscription
A location dynamics model and ADRD-focused future directions are offered for guiding rural practitioners, researchers, and policymakers in mitigating rural disparities. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The Alzheimer's Association hosted the second Latinos & Alzheimer's Symposium in May 2021. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Future studies need to examine underlying processes and develop interventions to reduce disparities while also being more broadly inclusive of diverse populations. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
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
The prevalence of dementia in this rural Tanzanian population is similar to that reported in high-income countries. 3 key findings →
Design: cross-sectional Participants: 1,198 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
As ADRD deaths at home increase, the need for caregiver support and home-based palliative care may become more critical. 5 key findings →
Design: cross-sectional Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Of 70 autopsied patients with the acquired immune deficiency syndrome (AIDS), 46 suffered progressive dementia that was frequently accompanied by motor and behavioral dysfunction. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
When a patient with cancer develops a brain metastasis, death is usually imminent, but aggressive treatment in some patients with limited or no systemic disease yields long-term survival. 2 key findings →
Participants: 12 Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
In the following brief report, we examined gender differences in incidence rates of any dementia, Alzheimer's disease (AD) alone, and non-Alzheimer's dementia alone in 16,926 women and men in the Swedish Twin Registry aged 65+. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Pain is an understudied problem in frail elderly patients, especially those with cognitive impairment, delirium, or dementia. 2 key findings →
Design: cross-sectional Participants: 325 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Dementia is underdiagnosed, and thus, ICD codes alone cannot serve as a gold standard for diagnosis. 3 key findings →
Participants: 1,861 Evidence: low
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 →