Evidence map›Paper›PMID 31561363›Full record

ArticleJournal of Alzheimer's disease : JAD2019

Race, APOEɛ4, and Long-Term Cognitive Trajectories in a Biracial Population Sample.

Kumar B Rajan, Elizabeth A McAninch, Robert S Wilson, Jennifer Weuve, Lisa L Barnes, Denis A Evans

Abstract read
In one paragraph

Article in Journal of Alzheimer's disease : JAD, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
1.7field-weighted citation impact, top 18% 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

31 citing papers in PubMed, 34 citations in OpenAlex.

  1. Article
  2. The role of polygenic risk in Alzheimer's disease prediction for African Americans.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Observational
  3. Review
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  12. Neuropathology-based APOE genetic risk score better quantifies Alzheimer's risk.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2023
    Article
  13. Intersectionality in Alzheimer's Disease: The Role of Female Sex and Black American Race in the Development and Prevalence of Alzheimer's Disease.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2023
    Review
  14. Article
  15. Article
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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

6 authors at 3 institutions in 1 country.

Kumar B RajanDepartment of Public Health Sciences, UC Davis, Davis, CA, USA.
Elizabeth A McAninchDepartment of Internal Medicine, Rush University Medical Center, Chicago, IL, USA.
Robert S WilsonRush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL, USA.
Jennifer WeuveDepartment of Epidemiology, Boston University, Boston, MA, USA.
Lisa L BarnesRush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL, USA.
Denis A EvansDepartment of Internal Medicine, Rush University Medical Center, Chicago, IL, USA.
Rush University Medical Center · USBoston University · USUniversity of California, Davis · US

Funding

Preserving Cognitive Resilience: A Biracial Parent-Offspring Study (18-4674) - Feasibility StudyR01AG058679 · NIA · UNIVERSITY OF CALIFORNIA AT DAVIS · PI EVANS, DENIS A, RAJAN, KUMAR B. · 2019 to 2024
$13.8M
Genetic Epidemiology of Cognitive Decline in an Aging Population SampleR01AG030146 · NIA · RUSH UNIVERSITY MEDICAL CENTER · PI EVANS, DENIS A · 2007 to 2018
$6.2M
Factors Influencing Decline in AD Trends in a Biracial Population StudyRF1AG057532 · NIA · UNIVERSITY OF CALIFORNIA AT DAVIS · PI RAJAN, KUMAR B. · 2017 to 2017
$1.7M
Nonlinear Models of Cognition Preceding AD in a Biracial Population SampleR01AG051635 · NIA · UNIVERSITY OF CALIFORNIA AT DAVIS · PI RAJAN, KUMAR B. · 2016 to 2020
$1.5M
NIA NIH HHS R01 AG030146NIA NIH HHS R01 AG051635NIA NIH HHS R01 AG058679NIA NIH HHS RF1 AG057532
6 · The paper itself

Abstract

backgroundThe association of the APOEɛ4 allele with incident Alzheimer's dementia is higher among European Americans (EAs) than African Americans (AAs), but similar for the rate of cognitive decline.

objectiveTo examine the racial differences in the association of the APOEɛ4 allele with incident Alzheimer's dementia and cognitive decline.

methodsUsing a population-based sample of 5,117 older adults (66% AAs and 63% females), we identified cognitive trajectory groups from a latent class mixed model and examined the association of the APOEɛ4 allele with these groups.

resultsThe frequency of the APOEɛ4 allele was higher among AAs than EAs (37% versus 26%). Four cognitive trajectories were identified: slow, mild, moderate, and rapid. Overall, AAs had a lower baseline global cognition than EAs, and a higher proportion had rapid (7% versus 5%) and moderate (20% versus 15%) decline, but similar mild (44% versus 46%), and lesser slow (29% versus 34%) decline compared to EAs. Additionally, 25% of AAs (13% of EAs) with mild and 5% (<1% of EAs) with slow decline were diagnosed with incident Alzheimer's dementia. The APOEɛ4 allele was associated with higher odds of rapid and moderate decline compared to slow decline among AAs and EAs, but not with mild decline.

conclusionsAAs had lower cognitive levels and were more likely to meet the cognitive threshold for Alzheimer's dementia among mild and slow decliners, explaining the attenuated association of the ɛ4 allele with incident Alzheimer's dementia among AAs.

Indexed as

Population SurveillanceAgedAged, 80 and overAlzheimer DiseaseApolipoprotein E4Black or African AmericanCognitive DysfunctionDisease ProgressionFemaleHumansLongitudinal StudiesMaleRacial GroupsWhite PeopleApolipoprotein E4Alzheimer’s diseaseApolipoproteins Ecognitive agingrace relations

Identifiers

PMID31561363
PMCPMC6914259
OpenAlexW2976307863

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.