29,780 Alzheimer's and dementia studies in plain English, each scored out of 100.
Modifiable lifestyle risk factors have been identified as playing a major role in the development of dementia; hence, interventions addressing these risk factors represent a significant opportunity to reduce the number of people developing dementia. 2 key findings →
Design: randomized controlled trial Evidence: high
Full summary, score breakdown and related studies → Original source
Our search identified a total of 2,824 citations, following screening for duplicates and application of inclusion and exclusion criteria, five studies were included for analysis. 1 key finding →
Participants: 2,824 Evidence: low
Full summary, score breakdown and related studies → Original source
It is hypothesised that exercise and Mediterranean diet interventions, both individually and in combination, will result in improvements in cognitive performance compared with controls. 2 key findings →
Evidence: moderate
Full summary, score breakdown and related studies → Original source
Older adults with less than a secondary education are at elevated risk of dementia, including Alzheimer's disease. 3 key findings →
Evidence: high
Full summary, score breakdown and related studies → Original source
The present systematic review critically examines the available scientific literature on risk factors for malnutrition in the older population (aged ≥65 y). 1 key finding →
Design: systematic review Evidence: high
Full summary, score breakdown and related studies → Original source
Elderly patients with a hip fracture are vulnerable for delirium, especially when the patient has dementia. 4 key findings →
Design: cohort study Participants: 168 Evidence: moderate
Full summary, score breakdown and related studies → Original source
SEE MCKAY AND FURL DOI101093/AWW323 FOR A SCIENTIFIC COMMENTARY ON THIS ARTICLE: Focal brain injury can sometimes lead to bizarre symptoms, such as the delusion that a family member has been replaced by an imposter (Capgras syndrome). 3 key findings →
Design: meta-analysis Evidence: high
Full summary, score breakdown and related studies → Original source
This pilot study aimed to compare the effect of companion robots (PARO) to participation in an interactive reading group on emotions in people living with moderate to severe dementia in a residential care setting. 2 key findings →
Evidence: high
Full summary, score breakdown and related studies → Original source
A decision aid about feeding options in advanced dementia reduced decisional conflict for surrogates and increased their knowledge and communication about feeding options with providers. 1 key finding →
Design: randomized controlled trial Evidence: high
Full summary, score breakdown and related studies → Original source
The use of APs by patients with dementia in the general population is associated with increased mortality, but whether this risk extends to patients with PD remains unknown. 5 key findings →
Design: cohort study Participants: 7,877 Evidence: moderate
Full summary, score breakdown and related studies → Original source
LIPUS treatment can be an alternative to surgery for established nonunions. 4 key findings →
Design: systematic review Evidence: high
Full summary, score breakdown and related studies → Original source
In our large population-based sample, frailty syndrome was a short-term predictor of overall dementia and VaD. 5 key findings →
Design: longitudinal study Participants: 2,581 Evidence: moderate
Full summary, score breakdown and related studies → Original source
The findings of this cohort study suggest that among older Medicare patients undergoing surgical treatment, a diagnosis of a PND was associated with an increase in health care costs for up to 1 year following the surgical procedure. 5 key findings →
Design: cohort study Participants: 473 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Our findings suggest that older patients with reduced preoperative cognitive functions or who develop postoperative delirium are at risk of developing dementia within 5 years after cardiac surgery. 4 key findings →
Design: cohort study Participants: 114 Evidence: moderate
Full summary, score breakdown and related studies → Original source
The prevalence of older patients with dementia and oropharyngeal dysphagia (OD) is rising and management is poor. 1 key finding →
Design: longitudinal study Participants: 255 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Use of HAs is associated with delayed diagnosis of AD, dementia, depression, anxiety, and injurious falls among older adults with HL. 2 key findings →
Design: cohort study Participants: 114 Evidence: high
Full summary, score breakdown and related studies → Original source
ChEIs may increase the risk of syncope, with no effects on falls, fracture, or accidental injury in cognitively impaired older adults. 2 key findings →
Design: meta-analysis Evidence: high
Full summary, score breakdown and related studies → Original source
Family members of persons with advanced dementia may be asked to make complex treatment decisions without having adequate knowledge regarding the risks and benefits. 1 key finding →
Design: randomized controlled trial Evidence: high
Full summary, score breakdown and related studies → Original source
Patients with dementia are significantly more likely to be disenrolled from hospice following a long enrollment period compared with patients without dementia. 5 key findings →
Design: cohort study Participants: 149,814 Evidence: moderate
Full summary, score breakdown and related studies → Original source
There is a dearth of good-quality evidence investigating the cancer-dementia prevalence and its implications for successful cancer treatment. 3 key findings →
Participants: 44 Evidence: low
Full summary, score breakdown and related studies → Original source
There were 1 561 940 patients, including 17 963 hospitalized for ruptured AAA, 304 980 for AMI, 1 181 648 for stroke, 19 675 for aortic dissection, and 37 674 for SAH. 3 key findings →
Design: cohort study Participants: 940 Evidence: moderate
Full summary, score breakdown and related studies → Original source
The review highlights the paucity of high-quality dementia-specific research in this area and recommends key areas for future work, for example, the need for process evaluation to identify facilitators and barriers to implementing interventions. 1 key finding →
Design: systematic review Evidence: high
Full summary, score breakdown and related studies → Original source
Policies regarding sustained hospice eligibility should account for the variable and protracted end-of-life trajectory of patients with dementia. 3 key findings →
Design: cohort study Participants: 2,629 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Quality of life of people with advanced dementia living in nursing homes is often suboptimal. 1 key finding →
Design: randomized controlled trial Evidence: high
Full summary, score breakdown and related studies → Original source
The survival prediction model demonstrated moderate accuracy for predicting mortality at 6 and 12 months before death in elderly patients with dementia. 2 key findings →
Design: longitudinal study Participants: 37,289 Evidence: moderate
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 29,780 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 29,780 records, built mostly from automated pulls of Europe PMC (63.8% of the library) and OpenAlex (17.1%), 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.
1,037 records (3.5% of the library) are not peer-reviewed — 964 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 →