27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
The study has enrolled over 1,600 normal control participants since study inception. 150 original participants continue their participation. 1 key finding →
Design: cohort study Participants: 103 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
We found that ∼25% of donors lived in high deprivation contexts, 52% had at least one incidence of CVD, and the cohort identified as .05). 3 key findings →
Participants: 7,187 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
This study reveals key sex differences in ADIA patients. 2 key findings →
Participants: 128,769 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
In 2021, the ASRs for AD and other dementias incidence and prevalence in Vietnam were 110.09 (95 % UI: 96.21-126.57) and 649.42 (95 % UI: 556.89-744.39) per 100,000 persons which were comparable to those in the Southeast Asia region and globally, with the burden predominantly observed in individuals aged 65 and older. 5 key findings →
Participants: 100,000 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Of the association between apathy and dementia (HR 1.49 [95% CI 0.99-2.41]), 27% was mediated by physical inactivity, BMI and diabetes combined. 5 key findings →
Participants: 3,303 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
= 0.039) were associated with better global cognition. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Describe geographic variation from 2019 to 2023 in assisted living (AL) and memory care supply, and its correlation with county-level characteristics. 2 key findings →
Participants: 1,000 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Residing in communities characterized by socioeconomic disadvantage may confer risk for neurodegenerative brain changes and future neuropathology. 1 key finding →
Participants: 388 Evidence: low
Full summary, score breakdown and related studies → Original source
The SARS-CoV-2 pandemic accelerated development of innovative methods for conducting research remotely via digital technologies. 3 key findings →
Participants: 1,860 Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Geographical disparities in mortality among Alzheimer`s disease (AD) patients have been reported and complex sociodemographic and environmental determinants of health (SEDH) may be contributing to this variation. 4 key findings →
Design: cross-sectional Participants: 50 Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
AimTo evaluate visual dysfunction and its correlation with structural changes in the retina in patients with Alzheimer's disease (AD).MethodsPatients with AD (n=24) and controls (n=24) underwent evaluation of visual acuity (VA), color vision (using the Farnsworth and L'Anthony desaturated (D) 15 color tests), and contrast sensitivity vision (CSV; using the Pelli-Robson chart and CSV-1000E test) to measure visual dysfunction. 5 key findings →
Participants: 24 Evidence: low
Full summary, score breakdown and related studies → Original source
The considerable age effect requires the adaptation of cut-off values for old age. 2 key findings →
Participants: 516 Evidence: low
Full summary, score breakdown and related studies → Original source
We used the results to assess whether there is epidemiological convergence across countries. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
These results informed an in-depth investigation of observed and expected mortality patterns based on sociodemographic measures. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Humans in modern societies typically consume food at least three times daily, while laboratory animals are fed ad libitum. 3 key findings →
Evidence: high
Full summary, score breakdown and related studies → Original source
Globally, approximately one in three of all adults suffer from multiple chronic conditions (MCCs). 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
The Global Burden of Diseases, Injuries, and Risk Factors (GBD) Study provides such information but does not routinely aggregate results that are of interest to clinicians specialising in neurological conditions. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
A group of European experts was commissioned by the European Chapter of the International Federation of Clinical Neurophysiology to gather knowledge about the state of the art of the therapeutic use of transcranial direct current stimulation (tDCS) from studies published up until September 2016, regarding pain, Parkinson's disease, other movement disorders, motor stroke, poststroke aphasia, multiple sclerosis, epilepsy, consciousness disorders, Alzheimer's disease, tinnitus, depression, schizophrenia, and craving/addiction. 5 key findings →
Participants: 25 Evidence: low
Full summary, score breakdown and related studies → Original source
Letter and category fluency tasks are used to assess semantic knowledge, retrieval ability, and executive functioning. 1 key finding →
Participants: 365 Evidence: low
Full summary, score breakdown and related studies → Original source
This article presents evidence for the reliability and construct validity of the Apathy Evaluation Scale (AES). 5 key findings →
Participants: 123 Evidence: low
Full summary, score breakdown and related studies → Original source
There is a need for a standardized screening instrument which incorporates daily observations of nursing-home staff. 2 key findings →
Participants: 81 Evidence: low
Full summary, score breakdown and related studies → Original source
Air pollution is a risk factor for cardiovascular and Alzheimer's disease (AD). 3 key findings →
Participants: 72 Evidence: low
Full summary, score breakdown and related studies → Original source
Sleep dysfunction has been identified in the pathophysiology of Alzheimer's disease (AD); however, the role and mechanism of circadian rhythm dysfunction is less well understood. 1 key finding →
Evidence: moderate
Full summary, score breakdown and related studies → Original source
The important functions of sleep include cleaning processes such as the elimination of metabolic products, e.g., amyloid, via the glymphatic system; consolidation of memory; and anabolic regulation of metabolism. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Sleep apnoea was associated with more common other respiratory concerns, and more frequent visits to physicians, but not with some expected medical comorbidities (cardiac). 3 key findings →
Participants: 75 Evidence: low
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 →