Over a median follow-up of 5.9-7.9 years, 3,492 dementia cases were identified. 5 key findings →
Participants: 44,488 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
Over a median follow-up of 5.9-7.9 years, 3,492 dementia cases were identified. 5 key findings →
Participants: 44,488 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Little is known about the relationships between infections, sepsis and dysphagia. 3 key findings →
Participants: 4,475 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Upon initiation of guanfacine, patients with delirium had a reduction in daily antipsychotic exposure and a decrease in positive delirium screens. 4 key findings →
Design: cohort study Participants: 56 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
127 patients (67.7% males) participated. 5 key findings →
Participants: 127 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
PurposeDelirium is a common yet preventable complication of hospitalization, surgery and illness that is associated with poor outcomes. 1 key finding →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
The review consistently identified high levels of perceived stress among dementia caregivers. 5 key findings →
Design: systematic review Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
We estimated average per patient direct, indirect and total costs for the 6-month observation period. 2 key findings →
Participants: 145 Evidence: low
Full summary, score breakdown and related studies → Original source
A large number of older persons are living in the community with undetected dementia. 5 key findings →
Participants: 252 Evidence: low
Full summary, score breakdown and related studies → Original source
This is the first study to consider resident, unit, staff, and home variables that are associated with food intake. 5 key findings →
Design: cross-sectional Evidence: low
Full summary, score breakdown and related studies → Original source
The Behavior Rating Scale for Dementia provides a standardized, reliable measure that can be administered to caregivers of demented subjects. 1 key finding →
Participants: 303 Evidence: low
Full summary, score breakdown and related studies → Original source
Participating ICU in both surveys (2016: n = 559, 2024: n = 447) had similar basic characteristics and enabled comparison. 5 key findings →
Participants: 559 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The studied cohort comprised 4601 patients, mean age of 83.93 years and 56.26% were women. 5 key findings →
Participants: 4,601 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
The risk of delirium admissions was elevated for the first 1-30 days of prescriptions [IRR 1.54 (95% CI 1.30-1.82) for men, 1.44 (1.22-1.70) for women] and whilst reducing over time for women [1.10 (0.94-1.29) for 91-365 days of prescriptions], it remained elevated for men [1.38 (1.17-1.64)]. 5 key findings →
Participants: 293 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The incidence of POD was 8.2% (26 of 316). 5 key findings →
Participants: 316 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
NPs reported that the quality of dementia care in their practices is poorer than the overall care provided. 5 key findings →
Design: cross-sectional Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Among 51,202 admissions (mean/SD age = 82/7 years), any cognitive morbidity was present in 18,225 (35.6%, 95% CI 35.2-36.0%): delirium occurred in 24.0% (n = 12,289, of which 14.3% (n = 7332) had delirium only and 9.7% (n = 4957) had delirium + dementia) dementia only in 8.7%, (n = 4450), AMTS <8 in 2.9% (n = 1486). 5 key findings →
Participants: 12,289 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Delirium is an independent marker for increased mortality among older medical inpatients during the 12 months after hospital admission. 3 key findings →
Participants: 243 Evidence: low
Full summary, score breakdown and related studies → Original source
Using a structured instrument, 325 elderly patients admitted to a general hospital for an acute medical problem were evaluated daily in order to detect symptoms of delirium. 1 key finding →
Participants: 125 Evidence: low
Full summary, score breakdown and related studies → Original source
Study objective We sought to determine the prevalence of mental status impairment in elderly emergency department patients and to assess documentation of and referrals by emergency physicians for mental status impairment after discharge from the ED. 1 key finding →
Participants: 297 Evidence: low
Full summary, score breakdown and related studies → Original source
Behavioral problems are thought to be pervasive and devastating to patients with dementia of the Alzheimer's type and their families. 4 key findings →
Participants: 127 Evidence: low
Full summary, score breakdown and related studies → Original source
The authors report on clinical features and mortality rates in a group of 149 patients with apparent idiopathic parkinsonism starting before the age of 40 years. 1 key finding →
Participants: 149 Evidence: low
Full summary, score breakdown and related studies → Original source
Out of a sample of 178 patients with AD, aggression was present in 20%, wandering in 19%, binge-eating in 10%, hyperorality in 6%, urinary incontinence in 48%, and sexual disinhibition in 7%. 5 key findings →
Participants: 178 Evidence: low
Full summary, score breakdown and related studies → Original source
Genetic mutations in the tau gene on chromosome 17 are known to cause frontotemporal dementias. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Parkinson's disease (PD) is a multisystem neurodegenerative disorder. 2 key findings →
Participants: 101 Evidence: low
Full summary, score breakdown and related studies → Original source
GMHR is a reliable, valid, global bedside measure of severity of general medical comorbidity for patients with dementia that can be used for clinical and research purposes. 1 key finding →
Participants: 819 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 →