28,580 Alzheimer's and dementia studies in plain English, each scored out of 100.
The sample included 47 100 Medicare beneficiaries (25 900 women [54.9%]; mean [SD] age, 72.2 [11.4] years). 5 key findings →
Design: cohort study Participants: 47 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Out of 50,089 LTC residents, 12.1% retained their family physicians post-LTC admission. 5 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source
The purpose of this longitudinal cohort study was to explore the outcomes of persons living with dementia (PLWD) and their caregivers during their first 9 months at the Integrated Memory Care Clinic (IMCC). 1 key finding →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source
Total monthly health care costs for individuals with ADRD are statistically greater (P<0.05) than controls beginning in the third month before diagnosis and remain significantly greater through the eighth month following diagnosis. 4 key findings →
Design: cohort study Participants: 927 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Medicare beneficiaries with a little or a lot of trouble hearing had 18% (95% confidence interval [CI] odds ratio [OR] = 1.10-1.27) and 25% (95% CI OR = 1.07-1.47) increased odds of reporting greater difficulty with understanding Medicare, respectively, compared with those with no hearing trouble. 3 key findings →
Design: cross-sectional Participants: 10,510 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
In comparison to counties with the lowest AL penetration, high-penetration counties had higher high school and college education attainment (mean 25.3% vs 18.5%) and median annual income ($56,000 vs $46,800), and lower poverty (12.8% vs 17.3%) and unemployment rates (3.9% vs 5.1%). 5 key findings →
Participants: 1,000 Evidence: low
Full summary, score breakdown and related studies → Original source
Percentages of patients with imaging tests, DLB symptoms, diagnoses and treatments for DLB increased as patients’ first DLB diagnosis neared and occurred at lower percentages 7‐12 months after initial diagnosis. 1 key finding →
Design: systematic review Participants: 974 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Black older adults are less likely to move to assisted living and are more likely to move to a nursing home compared to white older adults. 3 key findings →
Participants: 5,212 Evidence: low
Full summary, score breakdown and related studies → Original source
The most observed resident affect type was neutral (53.1% of all minutes observed), followed by positive affect (44.5%). 5 key findings →
Participants: 22 Evidence: low
Full summary, score breakdown and related studies → Original source
In 2014 and 2016, the overall prevalence of AD/ADRD diagnoses was 5.6% and 6.5%, respectively. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Neither assessment condition promoted significantly greater levels of consistency (i.e., the same preference rating at Time 1 and Time 2). 5 key findings →
Participants: 21 Evidence: low
Full summary, score breakdown and related studies → Original source
Participants: 83 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The Medicare annual wellness visit-a preventive care visit free to Medicare beneficiaries enrolled in Part B-requires detection of cognitive impairment. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
We examined state variations in assisted living (AL) regulatory policies for admission/retention, staffing/training, medication management, and dementia care. 3 key findings →
Participants: 46 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Specialised care services were highly prevalent. 5 key findings →
Design: cross-sectional Evidence: low
Full summary, score breakdown and related studies → Original source
There were 1673 teleconsultations conducted with 850 unique patients. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Dementia decedents were more likely to die at home and other places and less likely to die at institutional settings over the study period. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Montessori-based interventions (MBIs) were developed to promote guided participation in meaningful activities by people with dementia patients. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Dementia education for healthcare providers has gained growing attention in China. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
The coronavirus disease (COVID-19) pandemic has been particularly challenging for nursing home staff and residents. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
As the United States population ages, a higher share of adults is likely to use long-term services and supports. 5 key findings →
Design: narrative review Evidence: low
Full summary, score breakdown and related studies → Original source
Despite a formal inpatient or outpatient classification, the residents living in AL facilities showed significantly higher values for well-being and showed significantly less agitated, challenging behavior compared to the nursing home. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Alternative care environments for regular nursing homes are highly warranted to promote health and well-being of residents with dementia that are part of an age-friendly and dementia-friendly city and society. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
fewer functional limitations in the MA population, perhaps explaining why those patients had fewer health care visits. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The COVID-19 pandemic and the social unrest pervading U.S. cities in response to the killings of George Floyd and other Black citizens at the hands of police are historically significant. 2 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. 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 28,580 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 28,580 records, built mostly from automated pulls of Europe PMC (62.2% of the library) and OpenAlex (17.8%), 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 (3.6% 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 →