Evidence map›Paper›PMID 32020605›Full record

ArticleJournal of the American Geriatrics Society2020

Aging, Diabetes, Obesity, and Cognitive Decline: A Population-Based Study.

Mary Ganguli, Joanne C Beer, Joseph M Zmuda, Christopher M Ryan, Kevin J Sullivan, Chung-Chou H Chang, R Harsha Rao

Open access · greenAbstract read
In one paragraph

Article in Journal of the American Geriatrics Society, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
5.0field-weighted citation impact, top 4% 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

33 citing papers in PubMed, 64 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Aging · 2025
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Cognitive decline and diabetes in the clinical setting.Medicine and pharmacy reports · 2025
    Article
  14. Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

7 authors at 3 institutions in 2 countries.

Mary GanguliDepartment of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.ORCID 0000-0003-2762-7105
Joanne C BeerDepartment of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, Pennsylvania.
Joseph M ZmudaDepartment of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania.
Christopher M RyanDepartment of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
Kevin J SullivanDepartment of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania.
Chung-Chou H ChangDepartment of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
R Harsha RaoDivision of Endocrinology, Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, Pennsylvania.
University of Pittsburgh · USUniversity of Pennsylvania · USVA Pittsburgh Healthcare System · US

Funding

Mild Cognitive Impairment: A Prospective Community StudyR01AG023651 · NIA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI GANGULI, MARY · 2005 to 2020
$27.1M
Mild Cognitive Impairment: A Prospective Community StudyR37AG023651 · NIA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Carmen Andreescu, MARY GANGULI · 2021 to 2026
$18.2M
Epidemiology of Aging Brain and BehaviorK07AG044395 · NIA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI GANGULI, MARY · 2013 to 2017
$615k
NIA NIH HHS K07 AG044395NIA NIH HHS R01 AG023651NIA NIH HHS R01AG023651NIA NIH HHS R37 AG023651
6 · The paper itself

Abstract

BACKGROUND/

objectivesTo investigate potential mechanisms underlying the well-established relationship of diabetes and obesity with cognitive decline, among older adults participating in a population-based study. DESIGN/

settingTen-year population-based cohort study.

participantsA total of 478 individuals aged 65 years and older. MEASUREMENTS: We assayed fasting blood for markers of glycemia (glucose and hemoglobin A1c [HbA1c]), insulin resistance (IR) (insulin and homeostatic model assessment of IR), obesity (resistin, adiponectin, and glucagon-like peptide-1), and inflammation (C-reactive protein). We modeled these indices as predictors of the slope of decline in global cognition, adjusting for age, sex, education, APOE*4 genotype, depressive symptoms, waist-hip ratio (WHR), and systolic blood pressure, in multivariable regression analyses of the entire sample and stratified by sex-specific median WHR. We then conducted WHR-stratified machine-learning (Classification and Regression Tree [CART]) analyses of the same variables.

resultsIn multivariable regression analyses, in the entire sample, HbA1c was significantly associated with cognitive decline. After stratifying by median WHR, HbA1c remained associated with cognitive decline in those with higher WHR. No metabolic indices were associated with cognitive decline in those with lower WHR. Cross-validated WHR-stratified CART analyses selected no predictors in participants older than 87 to 88 years. Faster cognitive decline was associated, in lower WHR participants younger than 87 years, with adiponectin of 11 or greater; and in higher WHR participants younger than 88 years, with HbA1c of 6.2% or greater.

conclusionsOur population-based data suggest that, in individuals younger than 88 years with central obesity, even modest degrees of hyperglycemia might independently predispose to faster cognitive decline. In contrast, among those younger than 87 years without central obesity, adiponectin may be a novel independent risk factor for cognitive decline. J Am Geriatr Soc 68:991-998, 2020.

Indexed as

AgedAged, 80 and overAgingApolipoprotein E4Cognitive DysfunctionCross-Sectional StudiesDiabetes MellitusFemaleGlycated HemoglobinHumansHyperglycemiaLongitudinal StudiesMaleObesity, AbdominalPennsylvaniaProspective StudiesApolipoprotein E4Glycated Hemoglobinabdominal obesityadiponectinepidemiologyhyperglycemia

Identifiers

PMID32020605
PMCPMC8597580
OpenAlexW3004682732

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.