30,980 Alzheimer's and dementia studies in plain English, each scored out of 100.
Participation rates were good in both phases of the NEDICES baseline study, and this was influenced by age, sex and setting of the participants. 2 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Greater lifetime stress predicted poorer later-life cognition, and, in a small sample of African Americans, faster declines in a key domain of episodic memory. 4 key findings →
Participants: 50 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Most older patients surviving AMI have measurable CIND. 2 key findings →
Participants: 772 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
In FY2008, 50% of patients with PD having a diagnosis of psychosis were prescribed an AP. 5 key findings →
Participants: 2,597 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
This study enrolled 184 middle-aged and older women (95 Non-Hispanic White and 89 Hispanic/Latino) who provided in-home hands-on care to an elderly relative with Alzheimer's disease or another form of dementia. 4 key findings →
Participants: 184 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
These findings demonstrate that early life experiences influence the trajectory of cognitive aging. 5 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
The PRISM-PC questionnaire captures primary care patients' acceptance, perceived harms, and perceived benefits of dementia screening. 2 key findings →
Design: cross-sectional Participants: 315 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
By 2060, ADRD cases in China are projected to reach approximately 49.89 million, with the highest prevalence and economic burden concentrated in provinces such as Shandong, Sichuan, Jiangsu, Henan, and Guangdong. 5 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Globally, the age-standardized incidence rates (ASIR) remained relatively steady. 5 key findings →
Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Examining the risk of clinically diagnosed dementia in older adults, our study found a 65% increased risk of Alzheimer's disease (AD) dementia in individuals with diabetes compared with those without. 5 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Higher ARTS score was associated (all ps < 0.01) with incident MCI (hazard ratio [HR] = 1.29), dementia (HR = 1.33), and stroke (HR = 1.52) and with diastolic/systolic blood pressure, self-reported hypertension, claudication, congestive heart failure, smoking, and glomerular filtration rate in the combined sample. 5 key findings →
Participants: 707 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Dementia prevalence exceeds 40% for individuals in advanced old age, but that figure is not informative about the lifetime risk of ever having dementia or the risk of having dementia for different durations. 3 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Virtual data collection was highly feasible in both studies, successfully engaging participants in ADRD research, including those from underrepresented racial and ethnic groups. 5 key findings →
Design: cohort study Participants: 500 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
In 2023, there were 205,507 people with dementia in the CPRD database, 40,244 with Parkinson's disease, 3515 with MND and 1672 with Huntington's disease. 5 key findings →
Participants: 205,507 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The results suggest that education is robustly associated with level of cognitive function but not with rate of cognitive decline and that the former association primarily accounts for education's correlation with risk of dementia in old age. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Algorithmic diagnoses provide a cost-effective way to conduct dementia research. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer's disease (AD) is the most frequent cause of dementia, where the abnormal accumulation of beta-amyloid (Aβ) and tau lead to neurodegeneration as well as loss of cognitive, behavioral, and functional abilities. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
We describe the history, development, and success of the recruitment and screening procedures used by researchers at the University of California, Davis Alzheimer's Disease Center (UCD ADC) to facilitate minority enrollment in research. 5 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
When compared to edentulous elderly patients, patients with remaining teeth were younger at admittance, were more often non-cooperative, and had a poorer oral health and higher need for dental care. 5 key findings →
Participants: 725 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
While educational disparities in dementia incidence are well-known, whether and to what extent they persist beyond dementia onset is less explored. 4 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Older adults in rural India experience higher social isolation due to limited social and healthcare resources. 1 key finding →
Design: longitudinal study Participants: 71,513 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
The results confirm that unilateral parkinsonism unresponsive to levodopa and limb ideomotor apraxia are the clinical hallmarks of corticobasal degeneration, and only a minority of patients with corticobasal degeneration present with dementia. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
This article outlines methodological enhancements to better evaluate treatment approaches in future registration trials and provides an algorithm for improving the treatment of these patients in nursing home and non-nursing home settings. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Previous studies have indicated a prevalence of dementia in older admissions of ∼42% in a single London teaching hospital, and 21% in four Queensland hospitals. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
It was hypothesized that race or ethnicity, social support, and functional status are independently associated with treatment intensity and controlling for regional characteristics, and that individual characteristics account for a substantial proportion of expenditure variation. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
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.
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 30,980 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 30,980 records, built mostly from automated pulls of Europe PMC (65.2% of the library) and OpenAlex (16.4%), 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.
1,040 records (3.4% of the library) are not peer-reviewed — 965 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 →
Newest studies, as a dated timeline → Atom feed Where this research is being discussed: events