31,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
Beneficiaries with a new diagnosis of Alzheimer disease and related dementias, hypertension, and psychiatric disorders had relatively high rates of switching into MA plans and low rates of switching out of MA plans. 5 key findings →
Evidence: low
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Ninety-four percent of hospices and 72% of PC programs had served at least one patient with a primary diagnosis of dementia within the past year. 5 key findings →
Evidence: low
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There were 13,700 beneficiaries with full-year enrollment in MA (6,046) or TM (7,724), 518 with ADRD and 13,252 without ADRD. 5 key findings →
Design: cross-sectional Evidence: low
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In FFS, AD incidence (2008-2018) decreased (138 to 104); MCI incidence increased (8 to 47), but the sum (MCI + AD) was relatively stable (146 to 151). 5 key findings →
Evidence: low
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Among PWD with Medicaid, out-of-pocket costs for nursing homes and assisted living facilities were significantly higher (60%) compared to those TM (33%) and MA (30%). 5 key findings →
Design: cohort study Evidence: moderate
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For patients with serious comorbidities, diabetes management guidelines recommend more relaxed glycemic targets (glycosylated hemoglobin [HbA1c] <8-8.5% rather than <7%) and cautious use of agents known to cause hypoglycemia. 5 key findings →
Participants: 216,839 Evidence: moderate
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In this study on Medicare patients with AF, Black race, low-income subsidy, and dual eligibility were found to be associated with delayed OAC initiation, suggesting potential disparities in the care of AF with timely OAC treatment. 5 key findings →
Participants: 446,441 Evidence: low
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The study population of 99,774 individuals had a mean age of 71.0 years and was 49.1% female, 73.9% White, and 17.8% Black, with 62.0% living in an urban setting. 5 key findings →
Participants: 99,774 Evidence: low
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Policy implementation was associated with a significant decrease in patient out-of-pocket cost. 5 key findings →
Evidence: low
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Claims-based dementia algorithms have not been evaluated in the Medicare Advantage (MA) population, a critical gap given the rapid growth of MA and concerns about data completeness. 3 key findings →
Participants: 5,058 Evidence: low
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Over half of participants (54%) received SFU as initial second-line ADM, 14% received BI, and 32% received another ADM. 4 key findings →
Evidence: low
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We found a significant increase in the likelihood of AWV uptake among telehealth adopters by 10.2 percentage points (p <0.001) than non-adopters of telehealth in traditional FFS Medicare plans. 5 key findings →
Design: longitudinal study Evidence: moderate
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We found a significant increase in the likelihood of AWV uptake among telehealth adopters by 10.2 percentage points (p <0.001) than non-adopters of telehealth in traditional FFS Medicare plans. 5 key findings →
Design: longitudinal study Evidence: moderate
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Conducting high-quality health technology assessments requires high-quality evidence. 1 key finding →
Evidence: low
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System affiliation is associated with less restrictive PA policies in MA, highlighting organizational structure as an important dimension of utilization management. 3 key findings →
Participants: 6,480 Evidence: low
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Little is known about the extent of prior authorization requirements in otolaryngology. 5 key findings →
Participants: 34 Evidence: low
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Very early in the course of the Covid-19 pandemic, it became glaringly clear that older persons were at significantly increased risk of infection, severe illness, hospitalization, intensive care and respiratory support, and death. 5 key findings →
Participants: 19 Evidence: low
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Observational and audit data were collected for 181 patients (average age = 82.5 years) across the two hospitals. 5 key findings →
Participants: 181 Evidence: low
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In 2016, there were 1,005,781 Medicare Advantage and fee-for-service long-term residents. 5 key findings →
Evidence: low
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The ANCOVA demonstrated no significant overall differences in BPSD severity related to SES measures. 5 key findings →
Participants: 144 Evidence: low
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This study was a retrospective analysis of administrative data (20% sample) of 15 996 Medicare Part D enrollees who received a DES in 2006 to 2007. 5 key findings →
Evidence: low
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In the testing cohort, the super learner obtained a concordance statistic (95% confidence interval) of 0.822 (0.810, 0.835), higher than any of the individual ML models (Figure 1), and its predicted risk aligned with observed risk in calibration slope plots (Figure 2). 2 key findings →
Participants: 75 Evidence: moderate
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COVID‐19 increases new MCI/ADRD risk. 2 key findings →
Participants: 2,492,122 Evidence: low
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These findings suggest that moving to an AL influences Medicare enrollment decisions; and, variation in switching exists between the type of AL (general vs memory care) and whether or not an individual has dementia. 4 key findings →
Participants: 63,395 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
These findings suggest that moving to an AL influences Medicare enrollment decisions; and, variation in switching exists between the type of AL (general vs memory care) and whether or not an individual has dementia. 4 key findings →
Participants: 63,395 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 31,380 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 31,380 records, built mostly from automated pulls of Europe PMC (65.6% of the library) and OpenAlex (16.2%), 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.
1,048 records (3.3% of the library) are not peer-reviewed — 973 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