Evidence map›Paper›PMID 32701513›Full record

ArticleAlzheimer disease and associated disorders

Predictors of Dementia in the Oldest Old: A Novel Machine Learning Approach.

Yichen Jia, Chung-Chou H Chang, Tiffany F Hughes, Erin Jacobsen, Shu Wang, Sarah B Berman, M Ilyas Kamboh, Mary Ganguli

Open access · greenAbstract read
In one paragraph

Article in Alzheimer disease and associated disorders. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
0.3field-weighted citation impact, top 42% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 1 synthesis or guideline pooled it, 7 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 2 countries.

Yichen JiaDepartments of Biostatistics.
Chung-Chou H ChangDepartments of Biostatistics.
Tiffany F HughesDepartment of Sociology, Anthropology, and Gerontology, Youngstown State University, Youngstown, OH.
Erin JacobsenPsychiatry.
Shu WangDepartment of Biostatistics, University of Florida, Gainesville, FL.
Sarah B BermanNeurology, University of Pittsburgh School of Medicine Pittsburgh, PA.
M Ilyas KambohHuman Genetics.
Mary GanguliEpidemiology, University of Pittsburgh Graduate School of Public Health.
Cancer Research And Biostatistics · USUniversity of Florida · USUniversity of Pittsburgh · USYoungstown State University · US

Funding

Mild Cognitive Impairment: A Prospective Community StudyR01AG023651 · NIA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI GANGULI, MARY · 2005 to 2020
$27.1M
Risk factors for MCI and Dementia in a Diverse Senior CohortR01AG058549 · NIA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI GANGULI, MARY · 2018 to 2022
$3.7M
NIA NIH HHS R01 AG023651NIA NIH HHS R01 AG058549
6 · The paper itself

Abstract

backgroundIncidence of dementia increases exponentially with age; little is known about its risk factors in the ninth and 10th decades of life. We identified predictors of dementia with onset after age 85 years in a longitudinal population-based cohort.

methodsOn the basis of annual assessments, incident cases of dementia were defined as those newly receiving Clinical Dementia Rating (CDR) ≥1. We used a machine learning method, Markov modeling with hybrid density-based and partition-based clustering, to identify variables associated with subsequent incident dementia.

resultsOf 1439 participants, 641 reached age 85 years during 10 years of follow-up and 45 of these became incident dementia cases. Using hybrid density-based and partition-based, among those aged 85+ years, probability of incident dementia was associated with worse self-rated health, more prescription drugs, subjective memory complaints, heart disease, cardiac arrhythmia, thyroid disease, arthritis, reported hypertension, higher systolic and diastolic blood pressure, and hearing impairment. In the subgroup aged 85 to 89 years, risk of dementia was also associated with depression symptoms, not currently smoking, and lacking confidantes.

conclusionsAn atheoretical machine learning method revealed several factors associated with increased probability of dementia after age 85 years in a population-based cohort. If independently validated in other cohorts, these findings could help identify the oldest-old at the highest risk of dementia.

Indexed as

DementiaMachine LearningAgedDiagnostic Self EvaluationFemaleHumansHypertensionIncidenceLongitudinal StudiesMaleMental Status and Dementia TestsPennsylvaniaProspective StudiesRisk Factors

Identifiers

PMID32701513
PMCPMC7677183
OpenAlexW3045474893

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.