28,180 Alzheimer's and dementia studies in plain English, each scored out of 100.
Urinary tract infections, pressure areas, pneumonia and delirium are potentially preventable hospital-acquired complications. 2 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source
Among 251 patients examined 3 months after the onset of acute ischemic stroke, we diagnosed dementia in 66 (26.3%) by using modified DSM-III-R criteria based on neuropsychological, neurological, functional, and psychiatric examinations. 4 key findings →
Design: cross-sectional Participants: 251 Evidence: low
Full summary, score breakdown and related studies → Original source
Delirium and dementia are two frequent causes of cognitive impairment among older adults and have a distinct, complex and interconnected relationship. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Dementia is commonly associated with more than 1 neuropathology, usually Alzheimer disease with cerebrovascular pathology. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Frontotemporal dementia is an umbrella clinical term that encompasses a group of neurodegenerative diseases characterised by progressive deficits in behaviour, executive function, or language. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
China has the largest population of patients with dementia in the world, imposing a heavy burden on the public and health care systems. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Since its opening in 2000, patient care and research go hand in hand at the Alzheimer center of the VU University Medical Center, both organized in such a way that they mutually strengthen each other. 1 key finding →
Participants: 4,000 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
The 6-item RUDAS is portable and tests multiple cognitive domains. 2 key findings →
Design: longitudinal study Participants: 166 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
This study is the first to document concurrent prevalence of primary dementia subtypes among this US population. 1 key finding →
Participants: 21 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Such complex needs require an integrated response from general health professionals and multidisciplinary dementia specialists. 1 key finding →
Design: cross-sectional Participants: 291,169 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The results of this review highlight the significant economic burden of dementia for patients, families and healthcare systems and thus are important for future health policy planning. 5 key findings →
Design: systematic review Evidence: high
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Increased BPSD was reported in 59.6% of patients as worsening of preexisting symptoms (51.9%) or as new onset (26%), and requested drug modifications in 27.6% of these cases. 4 key findings →
Participants: 4,913 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
This study did not find evidence to suggest that the ratio of dementia risk across Black and White individuals changed in the US between 2000 and 2016. 3 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Larger gains in rural adults' cognitive functioning between 2000 and 2010 that are linked with increased educational attainment demonstrate long-term public health benefits of investment in secondary education. 4 key findings →
Participants: 16,386 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
HZ vaccination is associated with reduced risk of dementia. 5 key findings →
Participants: 136,016 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Adherence rates for a number of antihypertensive and dementia drugs are lower for minorities compared with whites. 2 key findings →
Design: cohort study Participants: 56,561 Evidence: moderate
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Dramatic global increases in future numbers of people with dementia have been predicted. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
From molecular mechanisms to global brain networks, atypical fluctuations are the hallmark of neurodegeneration. 4 key findings →
Participants: 300 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Unsupervised machine learning identifies high likelihood of dementia in population-based surveys, even without cognitive and behavioral measures and without the need of clinical diagnosis of dementia in a subsample of the population. 2 key findings →
Participants: 18,165 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Vascular dementia is one of the most common causes of dementia after Alzheimer's disease, causing around 15% of cases. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The extent to which specific factors influence diagnostic delays in dementia is unclear. 4 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Non-specific codes were most common. Alzheimer's and vascular dementia codes showed high regional variability. 5 key findings →
Design: cohort study Participants: 2,016 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
In this study's cohort of 155 individuals with SETRS (mean [SD] age, 59.3 [10.3] years; 56 female participants [36.1%]), 153 of 155 (98.7%) scored below the cutoff of 26 for mild cognitive impairment, and 73 of 155 (47.1%) scored below the cutoff of 10 for severe dementia (mean [SD] MoCA score, 9.8 [6.4]). 5 key findings →
Design: cohort study Participants: 155 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Less EQ and YoE were associated with brain alterations across groups. 2 key findings →
Design: cross-sectional Participants: 7,533 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Among 2699 articles initially screened, 21 studies were included, encompassing over 1 million participants. 5 key findings →
Design: systematic review Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
9 of the 1,234 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 9. The same 9 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 28,180 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 28,180 records, built mostly from automated pulls of Europe PMC (61.7% of the library) and OpenAlex (18.1%), 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 →