We observed no mediation of individual risk factors in the effect of the interventions on dementia incidence. 5 key findings →
Participants: 1,679 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
28,580 Alzheimer's and dementia studies in plain English, each scored out of 100.
We observed no mediation of individual risk factors in the effect of the interventions on dementia incidence. 5 key findings →
Participants: 1,679 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
These data suggest that current treatment of late stage parkinsonism in the community remains insufficiently effective to alleviate disabling symptoms in many patients. 3 key findings →
Participants: 692 Evidence: low
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Dementia is a leading health policy challenge, with cases expected to triple by 2050, particularly in low- and middle-income countries. 2 key findings →
Evidence: low
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Daily informal care time was 0.5 hours higher in moderate compared to mild and 1.3h higher in severe compared to mild cognitive impairment. 3 key findings →
Participants: 5,369 Evidence: moderate
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127 patients (67.7% males) participated. 5 key findings →
Participants: 127 Evidence: low
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They are often found in middle-aged individuals and are associated with a greater risk of stroke and vascular dementia. 5 key findings →
Participants: 1,072 Evidence: low
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Parkinson's disease (PD) research is beginning to focus on early disease modification and prevention. 2 key findings →
Design: clinical trial Evidence: high
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Four hundred eighty-six participants developed dementia during 37,782 person-years of follow-up. 5 key findings →
Participants: 5,205 Evidence: low
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Of the association between apathy and dementia (HR 1.49 [95% CI 0.99-2.41]), 27% was mediated by physical inactivity, BMI and diabetes combined. 5 key findings →
Participants: 3,303 Evidence: low
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Of the 127 participants, one-third died during their stay. 5 key findings →
Participants: 127 Evidence: low
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Cardiovascular risk factors and lifestyle factors are associated with an increased risk of cognitive decline and dementia in observational studies, and have been targeted by multidomain interventions. 5 key findings →
Participants: 4,162 Evidence: low
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High dietary cholesterol and low dietary docosahexaenoic acid (DHA) intake are risk factors for Alzheimer's disease (AD). 2 key findings →
Evidence: low
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Whether there is a difference in impact between EOD and LOD on caregivers is still unclear. 3 key findings →
Evidence: low
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This study showed a large number of unmet needs in dementia. 2 key findings →
Evidence: low
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Cerebrospinal fluid (CSF) concentrations of amyloid beta(42) (Abeta(42)) peptides and tau proteins may serve as biomarkers for Alzheimer disease (AD). 4 key findings →
Participants: 69 Evidence: low
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Cerebral vascular amyloid beta-protein (Abeta) deposition, also known as cerebral amyloid angiopathy, is a common pathological feature of Alzheimer's disease. 4 key findings →
Evidence: low
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Five overarching themes derived from the interviews were as follows: (a) My life still has value and meaning, (b) I am my own unique individual, (c) I place my trust in other people, (d) The future worries me, and (e) I accept and embrace what life brings. 5 key findings →
Evidence: low
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Delirium is a complex and multifactorial condition associated with long-term cognitive decline. 4 key findings →
Participants: 15 Evidence: low
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Four themes were found: sense of self, connection to others, acceptance versus resistance in the face of adversity, and orientation toward the future versus focus on the present. 5 key findings →
Evidence: low
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These findings highlight normative modelling's utility in revealing the complex interplay among sex, age, and AD risk in shaping brain structure and cognition in later life. 5 key findings →
Design: longitudinal study Evidence: moderate
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Alzheimer's disease is the most common form of dementia in the elderly. 5 key findings →
Evidence: low
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Cholesterol and docosahexenoic acid (DHA) may affect degenerative processes in Alzheimer's Disease (AD) by influencing Abeta metabolism indirectly via the vasculature. 1 key finding →
Evidence: low
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Frontotemporal dementia (FTD) is the second most prevalent dementia after Alzheimer's disease (AD). 2 key findings →
Evidence: low
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Interviews with 50 Dutch physicians and 47 American physicians and 3 nurse practitioners generated three themes of ethical considerations: (1) Respecting the autonomy of the person with dementia, (2) Rationality as the basis for decisions and subsequent actions, and (3) Minimizing burden and suffering. 3 key findings →
Evidence: low
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The genetic architecture of sporadic Early-Onset Alzheimer Disease (sEOAD, onset ≤65 years) remains largely unknown. 2 key findings →
Evidence: low
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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 →