Socioeconomic disadvantage is recognized as a risk factor for cognitive decline, yet its associated neural pathways remain unclear. 5 key findings →
Participants: 822 Evidence: low
Full summary, score breakdown and related studies → Original source
Research
30,180 Alzheimer's and dementia studies in plain English, each scored out of 100.
Bivariate analyses showed that chain grocery store shoppers reported significantly greater fruit and vegetable intake (2.42 vs. 2.14 times/day for independent grocery store shoppers, p < 0.001) and lower rates of food insecurity compared to independent store shoppers (45.9% vs. 65.3% for independent grocery store shoppers, p < 0.001). 5 key findings →
Design: cross-sectional Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer's disease and related dementias (ADRDs) are a global crisis facing the aging population and society as a whole. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
The recent academic and commercial development, and regulatory approvals, of blood-based Alzheimer's disease (AD) biomarkers are breakthrough developments of immense potential. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
41/100
Genome-wide association studies (GWAS) have traditionally been undertaken in homogeneous populations from the same ancestry group. 1 key finding →
Evidence: moderate
Full summary, score breakdown and related studies → Original source
Black/African American (AA) individuals have a higher risk of Alzheimer's disease (AD) than White non-Hispanic persons of European ancestry (EUR) for reasons that may include economic disparities, cardiovascular health, quality of education, and biases in the methods used to diagnose AD. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
41/100
Dysphagia is recognised as part of the frailty syndrome, especially for those at the end of life. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Discrete-time hazard regression results show that sibling loss in mid-to-late life is associated with up to 54% higher risk for dementia. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
White respondents lived a greater percentage of their remaining lives cognitively healthy than their minority Black or Hispanic counterparts, regardless of level of education. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Alzheimer's disease (AD) and Alzheimer's Disease-Related Dementias (ADRD) are chronic illnesses that are highly prevalent in African Americans (AA). 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Alzheimer's disease (AD) and vascular dementia are two of the most prevalent dementias that afflict the aging population in the United States (US). 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
After covariate adjustment, there were few significant racial differences in caregiving strain, health, and service use. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
A formal evaluation of the health equity impact of a new intervention is hardly ever performed as part of a health technology assessment to understand its value. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Extensive literature in the United States documents racial/ethnic and gender disparities in the incidence and prevalence of dementia yet few studies have examined how race/ethnicity and gender intersect to shape inequalities in the risk of dementia. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
Hispanics and Asians diagnosed with dementia had 40% lower mortality risk and African Americans had 13% lower mortality risk than Whites. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
The objectives of this study are (1) to identify beneficiary-level characteristics associated with skilled nursing facility (SNF) length of stay (LOS), and (2) to determine if significant differences in LOS exist for vulnerable populations at the individual level or among nursing homes that serve a disproportionate share of vulnerable populations. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
41/100
Health screening is an important component of health promotion programs, and countries have promoted general health screening targeting the prevention and early management of common chronic diseases. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Vascular cognitive impairment (VCI) describes cerebrovascular disease (CeVD)-associated cognitive disorders regardless of pathogenesis, ranging from a prodrome to dementia. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
The distribution of scores in the Mini Mental State Examination (MMSE) of women aged 70-79 years from a rural area of Cambridgeshire is reported. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Planning for the care of increasing numbers of elderly persons with dementia has become an urgent health services concern in Canada and elsewhere, yet little is known about the challenges of providing appropriate dementia care in rural areas. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Age, sex, functional and cognitive impairment and the diagnosis of pneumonia or congestive heart failure were the strongest predictors of death. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Help-seeking was most often initiated by family members or formal care providers (ie, healthcare providers or social workers), usually in outpatient primary care settings but also elsewhere (eg, social service agencies, hospitals). 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
40/100
Despite the rapidly ageing population and a predicted sevenfold increase in the prevalence of dementia in minority ethnic communities, people from these communities remain under-represented in specialist dementia services. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
After adjusting for demographics, socioeconomics, health care access and utilization, comorbidities, and service year, we found that anti-dementia medication use was approximately 30% higher among non-Hispanic Whites compared to other racial/ethnic groups (PR=0.73, 95% confidence interval [CI]=0.59, 0.91). 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The authors extended previous studies of the stage-specific prevalence of behavioral pathology to members of ethnic minority groups. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
From across this tag
9 of the 926 studies in this tag that have a study page, 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.
- Current and Future Replacement and Opportunity Costs of Family Caregiving for Older Americans With and Without Dementia
- Associations of place‐based social determinants of health with biomarkers of Alzheimer's disease and related dementias
- P2‐435: NEIGHBORHOOD DISADVANTAGE IS ASSOCIATED WITH NEUROPATHOLOGICALLY CONFIRMED ALZHEIMER'S DISEASE
- Geographic disparities in Alzheimer's disease and related dementia mortality in the US: Comparing impacts of place of birth and place of residence
- Social Determinants of Health and Traumatic Brain Injury: Implications for Rehabilitation Service Delivery and Outcomes
- Improving genetic risk modeling of dementia from real-world data in underrepresented populations
- The Link between Obstructive Sleep Apnea and Neurocognitive Impairment: An Official American Thoracic Society Workshop Report
- Determinants for undetected dementia and late-life depression
- Divergent Mortality Patterns Associated With Dementia in the United States: 1999-2020
Where “Free full text” comes from
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
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 30,180 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.
What this library is — and isn't
This is a large sample of the Alzheimer's literature, not an exhaustive index of it. It holds 30,180 records, built mostly from automated pulls of Europe PMC (64.2% of the library) and OpenAlex (16.9%), 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 (3.4% 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 →