Evidence map›Paper›PMID 29669098›Full record

ArticleThe journals of gerontology. Series B, Psychological sciences and social sciences2018

The Association of Early Life Factors and Declining Incidence Rates of Dementia in an Elderly Population of African Americans.

Hugh C Hendrie, Valerie Smith-Gamble, Kathleen A Lane, Christianna Purnell, Daniel O Clark, Sujuan Gao

Abstract read
In one paragraph

Article in The journals of gerontology. Series B, Psychological sciences and social sciences, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 2 pooled it
2.2field-weighted citation impact, top 12% 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

19 citing papers in PubMed, 2 syntheses or guidelines pooled it, 42 citations in OpenAlex.

  1. Pooled it
  2. Incidence of Dementia and Alzheimer Disease Over Time: A Meta-Analysis.Journal of the American Geriatrics Society · 2019
    Pooled it
  3. Article
  4. Review
  5. 2024 Alzheimer's disease facts and figures.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Article
  6. Observational
  7. Review
  8. Article
  9. Article
  10. Article
  11. A New Look at Cohort Trend and Underlying Mechanisms in Cognitive Functioning.The journals of gerontology. Series B, Psychological sciences and social sciences · 2021
    Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Impact of urbanization on cognitive disorders.Current opinion in psychiatry · 2019
    Review
  17. Article
  18. Introduction to a Supplement on Population Level Trends in Dementia: Causes, Disparities, and Projections.The journals of gerontology. Series B, Psychological sciences and social sciences · 2018
    Article
  19. Review
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.

Hugh C HendrieIndiana University Center for Aging Research, Indianapolis.
Valerie Smith-GambleAlvin C. York VA Medical Center, Murfreesboro, Tennessee.
Kathleen A LaneDepartment of Biostatistics, Indiana University School of Medicine, Indianapolis.
Christianna PurnellIndiana University Center for Aging Research, Indianapolis.
Daniel O ClarkIndiana University Center for Aging Research, Indianapolis.
Sujuan GaoAlvin C. York VA Medical Center, Murfreesboro, Tennessee.
Alvin C. York VA Medical Center · USIndiana University – Purdue University Indianapolis · USRegenstrief Institute · US

Funding

Statistical Data EnclaveP30AG012846 · NIA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Joelle Abramowitz · 1999 to 2026
$23.2M
NIA NIH HHS P30 AG012846
6 · The paper itself

Abstract

Objectives: To explore the possible association of childhood residence, education levels, and occupation with declining incidence rates of dementia in 2 cohorts of elderly African Americans. Methods: African Americans residing in Indianapolis without dementia were enrolled in 1992 and 2001 and evaluated every 2-3 years. The cohorts consist of 1,440 participants in 1992 and 1,835 participants in 2001 aged 70 years and older. Cox proportional hazard regression models were used to compare cohort differences in dementia and Alzheimer's disease (AD) risk. Results: The 2001 cohort had significantly decreased risk of both incident dementia and AD (hazard ratio [HR]: 0.62/0.57 for dementia/AD). Years of education was associated with decreased risk of dementia (HR = 0.93; p = .0011). A significant interaction (p = .0477) between education and childhood rural residence was found for the risk of AD that higher education level is significantly associated with reduced AD risk (HR = 0.87) in participants with childhood rural residence, but no association in those with urban upbringing. The cohort difference for dementia rates were attenuated by adjusting for the 3 risk factors but remained significant (HR = 0.75; p = .04). Discussion: These results emphasize the importance of early life factors including rural residence and education for the risk for dementia later in life.

Indexed as

Educational StatusAgedAged, 80 and overBlack or African AmericanCohort StudiesDementiaFemaleHumansIncidenceMaleNeuropsychological TestsProportional Hazards ModelsRisk FactorsRural PopulationSocioeconomic Factors

Identifiers

PMID29669098
PMCPMC6018682
OpenAlexW2799943626

What OpenQuestion holds

Textmetadata
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.