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Research

32,180 Alzheimer's and dementia studies in plain English, each scored out of 100.

Find studies

Showing 1–25 of 29 studies with an author at Johns Hopkins University (US) · free to read (page 1 of 2) · 32,180 in the whole library · How the 0–100 score works

Download bibliography of these 29 studies, in this order: BibTeX (.bib) · RIS (.ris)

Showing 29 studies tagged mortality — clear

Browse by subject, author or institution

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

Subjects

Authors

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

Other institutions

From OpenAlex; 17,651 studies have no institution on record and are not counted here.

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.

Practice Guidelines for the Management of Community-Acquired Pneumonia in Adults

✓ Peer-reviewed alzhub usefulness score 70 out of 100. Clinical Infectious Diseases 2000-08-01

The of establishing the diagnosis of pneumonia and cause is with the antibiotic studies for of community-acquired studies for of community-acquired The diagnosis of is based on a of clinical and laboratory The diagnosis of is and and as well as disease, congestive heart failure, with pneumonia and cases of and are of do not require and are the of antibiotic antimicrobial is usually for and a chest radiography is usually to establish the diagnosis of examination to or is for detecting pneumonia Chest radiography is considered is for the etiologic the and or conditions. 5 key findings →

Design: randomized controlled trial Evidence: high

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

Evaluation of Racial Disparities in Hospice Use and End-of-Life Treatment Intensity in the REGARDS Cohort

✓ Peer-reviewed alzhub usefulness score 69 out of 100. JAMA network open 2020-08-03

Black decedents were less likely than White decedents to use hospice for 3 or more days (132 of 378 [34.9%] vs 385 of 834 [46.2%]; P Conclusions and relevance Despite the increase in the use of hospice care in recent decades, racial disparities in the use of hospice remain, especially for noncancer deaths. 1 key finding →

Design: cohort study Participants: 1,212 Evidence: moderate

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

Clinical Characterization and Prediction of Clinical Severity of SARS-CoV-2 Infection Among US Adults Using Data From the US National COVID Cohort Collaborative

✓ Peer-reviewed alzhub usefulness score 68 out of 100. JAMA network open 2021-07-01

This cohort study found that COVID-19 mortality decreased over time during 2020 and that patient demographic characteristics and comorbidities were associated with higher clinical severity. 5 key findings →

Design: cohort study Participants: 174 Evidence: moderate

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

Risk factors and screening instruments to predict adverse outcomes for undifferentiated older emergency department patients: a systematic review and meta-analysis

✓ Peer-reviewed alzhub usefulness score 67 out of 100. Academic emergency medicine : official journal of the Society for Academic Emergency Medicine 2015-01-01

Studies were significantly heterogeneous in terms of country, outcomes assessed, and the timing of post-ED outcome assessments. 5 key findings →

Design: systematic review Participants: 7,940 Evidence: high

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

Characterizing Heterogeneity in Neuroimaging, Cognition, Clinical Symptoms, and Genetics Among Patients With Late-Life Depression

✓ Peer-reviewed alzhub usefulness score 66 out of 100. JAMA psychiatry 2022-05-01

Late-life depression (LLD) is characterized by considerable heterogeneity in clinical manifestation. 4 key findings →

Design: longitudinal study Participants: 996 Evidence: moderate

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

Implications of the COVID-19 Pandemic on Adult Day Services and the Families They Serve

✓ Peer-reviewed alzhub usefulness score 59 out of 100. American journal of Alzheimer's disease and other dementias 2021-10-15

The COVID-19 pandemic forced adult day services (ADS) to close and abruptly end in-person services to clients. 5 key findings →

Design: randomized controlled trial Participants: 19 Evidence: high

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

Race Differences in Characteristics and Experiences of Black and White Caregivers of Older Americans

✓ Peer-reviewed alzhub usefulness score 56 out of 100. The Gerontologist 2020-09-01

Relative to white caregivers, blacks more often provided in excess of 40 hr of care per week (54.3% vs 38.6%) and more often cared for an older adult with dementia (27.1% vs 20.7%) who was living below the federal poverty line (31.7% vs 11.9%) or was Medicaid-eligible (42.2% vs 11.8%). 1 key finding →

Participants: 992 Evidence: low

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

Dementia, Alzheimer's Disease, and Mortality after Hemodialysis Initiation

✓ Peer-reviewed alzhub usefulness score 56 out of 100. Clinical journal of the American Society of Nephrology : CJASN 2018-08-09

Older patients on hemodialysis are at substantial risk of diagnosis with dementia and Alzheimer's disease, and carrying these diagnoses is associated with a twofold higher mortality. 4 key findings →

Participants: 356,668 Evidence: low

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

Machine-learning-based COVID-19 mortality prediction model and identification of patients at low and high risk of dying

✓ Peer-reviewed alzhub usefulness score 55 out of 100. Critical care (London, England) 2021-09-08

An accurate COVID-19 mortality prediction model among hospitalized patients based on the clinical features and comorbidities may play a beneficial role in the clinical setting to better management of patients with COVID-19. 3 key findings →

Participants: 250 Evidence: moderate

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

Recovery of activities of daily living in older adults after hospitalization for acute medical illness

✓ Peer-reviewed alzhub usefulness score 50 out of 100. Journal of the American Geriatrics Society 2008-12-01

By 12 months after discharge, of those discharged with new or additional ADL disability, 41.3% died, 28.6% were alive but had not recovered to baseline function, and 30.1% were at baseline function. 2 key findings →

Evidence: low

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

The Epidemiology of Social Isolation and Loneliness Among Family and Unpaid Caregivers of Older Adults: Findings From the National Study of Caregiving

✓ Peer-reviewed alzhub usefulness score 48 out of 100. The Journals of Gerontology Series B 2025-05-24

About 12% of caregivers (2.8 million) were socially isolated and 27% (6.3 million) were lonely. 5 key findings →

Participants: 2,174 Evidence: low

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

Additional hospitalization costs associated with delirium among older adults: evidence from the Medicare Current Beneficiary Survey

✓ Peer-reviewed alzhub usefulness score 47 out of 100. Frontiers in Public Health 2026-01-28

In a sample of 2,599 Medicare beneficiaries (mean age 78.4 years, 52.9% female, 81.8% White), we identified a total of 5,677 hospitalization claims. 5 key findings →

Participants: 5,677 Evidence: low

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

Medicaid Home and Community-Based Services Initiation and Acute Services Use

✓ Peer-reviewed alzhub usefulness score 46 out of 100. JAMA Health Forum 2026-03-27

In a sample of 1218 new HCBS users (75% female, 77% Black; mean [SD] age, 70.5 [7.5] years), Medicaid HCBS initiation was associated with a decrease in probability of ED use (-2.70 percentage points; 95% CI, -4.18 to -1.22 percentage points) and a decrease in probability of inpatient discharge (-2.63 percentage points; 95% CI, -3.75 to -1.51 percentage points). 5 key findings →

Design: cohort study Evidence: moderate

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

Free-Text Responses in a Nationally Representative Experimental Survey about End-of-Life Care Choices: ChatGPT-4o-Assisted Qualitative Analytical Study

✓ Peer-reviewed alzhub usefulness score 46 out of 100. JMIR Aging 2025-09-22

We identified several key themes: surrogates more often chose comfort care for care recipients with dementia, particularly at advanced stages. 5 key findings →

Participants: 3,931 Evidence: low

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

Trends in Assisted Living and Memory Care Supply From 2019 to 2023

✓ Peer-reviewed alzhub usefulness score 45 out of 100. Journal of the American Medical Directors Association 2025-09-30

Describe geographic variation from 2019 to 2023 in assisted living (AL) and memory care supply, and its correlation with county-level characteristics. 2 key findings →

Participants: 1,000 Evidence: low

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

Mortality and Function After Hip Fracture or Pneumonia in People With and Without Dementia

✓ Peer-reviewed alzhub usefulness score 44 out of 100. Journal of the American Geriatrics Society 2025-01-15

Among people with dementia, predicted 1-year mortality was higher among those with hip fracture (35.4%) versus those without hip fracture (14.8%), with similar patterns for pneumonia (49.6% vs. 13.0%). 5 key findings →

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
  • Randomized / 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
  • Multicenter 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 32,180 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 32,180 records, built mostly from automated pulls of Europe PMC (66.5% of the library) and OpenAlex (15.8%), 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.

1,045 records (3.2% of the library) are not peer-reviewed — 966 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

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