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Research

30,980 Alzheimer's and dementia studies in plain English, each scored out of 100.

Find studies

Showing 301–325 of 484 studies in Disparities · free to read (page 13 of 20) · 30,980 in the whole library · How the 0–100 score works

Download bibliography of these 484 studies, in this order: BibTeX (.bib) · RIS (.ris)

Browse by subject, author or institution

Each number is how many studies that link shows, with your other filters kept.

Other subjects

Authors

Names as each record prints them; the same person can appear under two spellings.

Institutions

From OpenAlex; 16,452 studies have no institution on record and are not counted here.

What “Disparities” covers

Disparities — Differences in dementia risk, diagnosis and care across race, ethnicity, income, geography and sex.

A note on reading research. One study is rarely the final word.

We try to note the size of a study, whether it was in humans or animals, and how early-stage the finding is. If a summary here doesn't make that clear, treat it with extra caution and check the original source.

Interleukin-6 is associated with cognitive function: the Northern Manhattan Study

✓ Peer-reviewed alzhub usefulness score 47 out of 100. Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association 2006-01-01

IL-6 levels were negatively associated with performance on the MMSE in this multiethnic cohort. 5 key findings →

Design: cross-sectional Evidence: moderate

Full summary, score breakdown and related studies → Original source Free full text

Perceived Stress and Cognitive Decline in Different Cognitive Domains in a Cohort of Older African Americans

✓ Peer-reviewed alzhub usefulness score 47 out of 100. The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry 2016-10-11

Research indicates that stress is linked to cognitive dysfunction. 2 key findings →

Participants: 467 Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Rural-urban differences in diagnostic incidence and prevalence of Alzheimer's disease and related dementias

✓ Peer-reviewed alzhub usefulness score 47 out of 100. Alzheimer's & dementia : the journal of the Alzheimer's Association 2021-03-04

These data suggest that older adults in rural communities may be underdiagnosed with ADRD, and/or diagnosed at later stages of dementia. 3 key findings →

Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Development and evaluation of a decision aid on mammography screening for women 75 years and older

✓ Peer-reviewed alzhub usefulness score 47 out of 100. JAMA internal medicine 2014-03-01

The median age of participants was 79 years, 69% (31 of 45) were of non-Hispanic white race/ethnicity, and 60% (27 of 45) had attended at least some college. 2 key findings →

Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Early parental death and remarriage of widowed parents as risk factors for Alzheimer disease: the Cache County study

✓ Peer-reviewed alzhub usefulness score 47 out of 100. The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry 2011-09-01

Parental death during childhood is associated with higher prevalence of AD, with different critical periods for father's versus mother's death, with strength of these associations attenuated by remarriage of the widowed parent. 5 key findings →

Participants: 4,108 Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Global mortality, prevalence and disability-adjusted life years of Alzheimer’s disease and other dementias in adults aged 60 years or older, and the impact of the COVID-19 pandemic: a comprehensive analysis for the global burden of disease 2021

✓ Peer-reviewed alzhub usefulness score 47 out of 100. BMC Psychiatry 2025-05-19

In 2021, global mortality from AD and other dementias among individuals aged 60 and older reached approximately 1,922,970.75 cases (95% CI: 480,348.08 to 5,104,315.95), and the prevalence was 52,560,253.51 cases (95% CI: 41,399,948.84 to 65,633,448.71). 5 key findings →

Evidence: moderate

Full summary, score breakdown and related studies → Original source Free full text

Health of Bi+ Dementia Caregivers: Moderation Effects of Minority and Caregiving Stress

✓ Peer-reviewed alzhub usefulness score 47 out of 100. American Journal of Alzheimer s Disease & Other Dementias® 2026-02-01

Despite comprising the largest segment of the sexual minority population and experiencing unique stressors and health disparities, bi+ dementia caregivers remain underrepresented in health and caregiving research. 3 key findings →

Design: cross-sectional Participants: 125 Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Degree of discrepancy between self and other-reported everyday functioning by cognitive status: dementia, mild cognitive impairment, and healthy elders

✓ Peer-reviewed alzhub usefulness score 46 out of 100. International journal of geriatric psychiatry 2005-09-01

Although there may be some mild functional changes associated particularly with the MCI-memory impaired subtype, individuals with MCI do not appear to under-report their functional status as can often been seen in persons with dementia. 5 key findings →

Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Measuring disability across cultures--the psychometric properties of the WHODAS II in older people from seven low- and middle-income countries. The 10/66 Dementia Research Group population-based survey

✓ Peer-reviewed alzhub usefulness score 46 out of 100. International journal of methods in psychiatric research 2010-03-01

We evaluated the psychometric properties of the 12-item interviewer-administered screener version of the World Health Organization Disability Assessment Schedule-version II (WHODAS II) among older people living in seven low- and middle-income countries. 2 key findings →

Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Lesions without symptoms: understanding resilience to Alzheimer disease neuropathological changes

✓ Peer-reviewed alzhub usefulness score 46 out of 100. Nature reviews. Neurology 2022-03-24

Since the original description of amyloid-β plaques and tau tangles more than 100 years ago, these lesions have been considered the neuropathological hallmarks of Alzheimer disease (AD). 1 key finding →

Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Perivascular spaces are associated with atherosclerosis: an insight from the Northern Manhattan Study

✓ Peer-reviewed alzhub usefulness score 46 out of 100. AJNR. American journal of neuroradiology 2013-04-04

These results suggest that mechanisms leading to atherosclerosis might also lead to an increased number of perivascular spaces. 5 key findings →

Participants: 706 Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Racial similarities and differences in predictors of mobility change over eighteen months

✓ Peer-reviewed alzhub usefulness score 46 out of 100. Journal of general internal medicine 2004-11-01

Improving transportation access and diabetes care may be important targets for enhancing mobility and reducing racial disparities in mobility. 1 key finding →

Design: cohort study Evidence: moderate

Full summary, score breakdown and related studies → Original source Free full text

The four-factor model of depressive symptoms in dementia caregivers: a structural equation model of ethnic differences

✓ Peer-reviewed alzhub usefulness score 46 out of 100. Psychology and aging 2008-09-01

Previous studies have suggested that 4 latent constructs (depressed affect, well-being, interpersonal problems, somatic symptoms) underlie the item responses on the Center for Epidemiological Studies Depression (CES-D) Scale. 3 key findings →

Participants: 1,183 Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

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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.

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 30,980 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 30,980 records, built mostly from automated pulls of Europe PMC (65.2% of the library) and OpenAlex (16.4%), 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.

1,040 records (3.4% of the library) are not peer-reviewed — 965 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 →

Newest studies, as a dated timeline →    Atom feed    Where this research is being discussed: events