APOE ɛ4, the most significant genetic risk factor for Alzheimer disease (AD), may mask effects of other loci. 5 key findings →
Design: meta-analysis
Participants: 4,203
Evidence: high
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Median follow-up by intention to treat was 2.0 years. 2 key findings →
Participants: 1,180
Evidence: low
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Ann Neurol 2018;84:737-748. 1 key finding →
Design: meta-analysis
Participants: 443
Evidence: high
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75/100
✓ Peer-reviewed
alzhub usefulness score 75 out of 100.
·
Neurology
·
2018-08-01
In this study, we found that ePVS counts were not associated with cognitive dysfunction in the general population. 5 key findings →
Design: meta-analysis
Participants: 3,575
Evidence: high
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71/100
✓ Peer-reviewed
alzhub usefulness score 71 out of 100.
·
JAMA neurology
·
2023-02-01
For all 4 phosphorylation sites assessed in CSF, p-tau was significantly more closely associated with amyloid-PET values than tau-PET values (p-tau181 difference, 13%; 95% CI, 3%-22%; P = .006; p-tau217 difference, 11%; 95% CI, 3%-20%; P = .003; p-tau231 difference, 15%; 95% CI, 5%-22%; P Conclusions and relevance Results of this cross-sectional study of 2 observational cohorts suggest that the p-tau abnormality as an early event in AD pathogenesis was associated with amyloid-β accumulation and highlights the need for careful interpretation of p-tau biomarkers in the context of the amyloid/tau/neurodegeneration, or A/T/(N), framework. 2 key findings →
Design: cross-sectional
Participants: 609
Evidence: moderate
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Increased cerebrospinal fluid neurofilament light (NfL) is a recognized biomarker for neurodegeneration that can also be assessed in blood. 1 key finding →
Participants: 805
Evidence: low
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71/100
✓ Peer-reviewed
alzhub usefulness score 71 out of 100.
·
Stroke
·
2020-06-10
Periventricular white matter hyperintensities (WMH; PVWMH) and deep WMH (DWMH) are regional classifications of WMH and reflect proposed differences in cause. 4 key findings →
Design: meta-analysis
Participants: 26,654
Evidence: high
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The APOE genotype is an important determinant of the risk of dementia. 1 key finding →
Design: cohort study
Participants: 134
Evidence: moderate
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In elderly hypertensive patients, a slightly more effective blood pressure reduction during candesartan-based therapy, compared with control therapy, was associated with a modest, statistically non-significant, reduction in major cardiovascular events and with a marked reduction in non-fatal stroke. 4 key findings →
Design: open-label trial
Participants: 4,964
Evidence: high
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67/100
✓ Peer-reviewed
alzhub usefulness score 67 out of 100.
·
JAMA neurology
·
2024-08-01
Among community-dwelling adults included in this study, higher fragmentation of the 24-hour activity rhythms was associated with greater subsequent Aβ burden, especially in APOE4 carriers. 5 key findings →
Design: cohort study
Participants: 639
Evidence: moderate
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During mean follow-up of 2.1 (range 1.5-3.4) years, 146 incident cases of dementia were detected, of which 105 were Alzheimer's disease. 3 key findings →
Design: case-control study
Participants: 6,870
Evidence: moderate
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Plasma amyloid-β (Aβ) levels are increasingly studied as a potential, accessible marker of cognitive impairment and dementia. 4 key findings →
Design: meta-analysis
Participants: 1,201
Evidence: high
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64/100
✓ Peer-reviewed
alzhub usefulness score 64 out of 100.
·
Nature
·
1998-06-01
Thirteen families have been described with an autosomal dominantly inherited dementia named frontotemporal dementia and parkinsonism linked to chromosome 17 (FTDP-17), historically termed Pick's disease. 5 key findings →
Evidence: low
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To assess age-, sex-, and subtype-specific incidence rates of dementia and to calculate the risk of dementia, the authors performed a large, community-based, prospective cohort study on dementia as part of the Rotterdam Study. 4 key findings →
Design: cohort study
Participants: 7,046
Evidence: moderate
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We examined whether cognitive function at baseline affected cognitive and cardiovascular outcomes in the Study on COgnition and Prognosis in the Elderly (SCOPE), a blood pressure (BP)-lowering intervention trial. 4 key findings →
Design: open-label trial
Participants: 2,070
Evidence: low
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The First Key Symposium was held in Stockholm, Sweden, 2-5 September 2003. 5 key findings →
Evidence: low
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All indicators of atherosclerosis were associated with dementia (odds ratios ranging from 1.3 to 1.9) and its major subtypes Alzheimer's disease (odds ratios 1.3-1.8) and vascular dementia (odds ratios 1.9-3.2). 4 key findings →
Participants: 284
Evidence: low
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The prevalence of dementia increases exponentially with age. 1 key finding →
Participants: 7,528
Evidence: low
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62/100
✓ Peer-reviewed
alzhub usefulness score 62 out of 100.
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JAMA neurology
·
2016-08-01
Microbleed prevalence was 15.3% (median [interquartile range] count, 1 [1-88]). 5 key findings →
Participants: 4,841
Evidence: low
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61/100
✓ Peer-reviewed
alzhub usefulness score 61 out of 100.
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Neurology
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2018-05-16
From the population-based Rotterdam Study, 4,447 participants underwent dietary assessment and brain MRI scanning between 2005 and 2015. 4 key findings →
Design: longitudinal study
Participants: 4,447
Evidence: moderate
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60/100
✓ Peer-reviewed
alzhub usefulness score 60 out of 100.
·
BMC medicine
·
2015-07-21
A substantial part of dementia cases could be prevented if modifiable risk factors would be eliminated. 1 key finding →
Participants: 7,003
Evidence: moderate
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60/100
✓ Peer-reviewed
alzhub usefulness score 60 out of 100.
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Neurology
·
1999-01-01
Contrary to previous reports, head trauma was not a risk factor for AD, and smoking did not protect against AD. 4 key findings →
Design: cross-sectional
Evidence: moderate
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60/100
✓ Peer-reviewed
alzhub usefulness score 60 out of 100.
·
Stroke
·
1997-02-01
Dementia and subtypes Alzheimer's disease and vascular dementia may be related to atrial fibrillation even if no clinical stokes have occurred. 2 key findings →
Design: cross-sectional
Participants: 6,584
Evidence: low
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60/100
✓ Peer-reviewed
alzhub usefulness score 60 out of 100.
·
Neurology
·
1999-12-01
It has been suggested that the risk might be particularly increased for carriers of the APOE-epsilon4 allele. 4 key findings →
Design: cross-sectional
Participants: 6,645
Evidence: moderate
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59/100
✓ Peer-reviewed
alzhub usefulness score 59 out of 100.
·
Neurology
·
2009-05-20
Progressive supranuclear palsy (PSP) is a progressive neurodegenerative disorder characterized by aggregates of the microtubule-associated protein tau (MAPT). 4 key findings →
Design: case-control study
Participants: 172
Evidence: moderate
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How the 0–100 score works — and why some entries are capped
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.
- Journal tier up to 10 pts
- Journal's citation record up to 4 pts
- Study design up to 12 pts
- Strength of evidence up to 5 pts
- Peer-review validation up to 10 pts
- How recent up to 5 pts
- Sample size up to 4 pts
- Effect reported up to 3 pts
- Studied in people up to 3 pts
- Randomised / blinded up to 2 pts
- Times cited up to 7 pts
- Citations per year up to 5 pts
- Impact for its field and year up to 6 pts
- Cited by studies here up to 6 pts
- Still being cited up to 4 pts
- Senior author's track record up to 4 pts
- Institution's track record up to 3 pts
- Multi-centre collaboration up to 3 pts
- Indexed in PubMed up to 2 pts
- Free to read up to 2 pts
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.