Evidence map›Paper›PMID 30885985›Full record

ArticleJournal of epidemiology and community health2019

Temporal trends in cognitive function of older US adults associated with population changes in demographic and cardiovascular profiles.

Michael Bancks, Alvaro Alonso, Norrina Allen, Kristine Yaffe, Mercedes Carnethon

Abstract read
In one paragraph

Article in Journal of epidemiology and community health, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Observational
  4. Article
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  7. Dementia Prevalence, Incidence, and Mortality Trends Among U.S. Adults Ages 72 and Older, 2011-2021.The journals of gerontology. Series A, Biological sciences and medical sciences · 2024
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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

5 authors.

Michael BancksDepartment of Epidemiology and Prevention, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA mbancks@wakehealth.edu.ORCID 0000-0003-3694-6060
Alvaro AlonsoDepartment of Epidemiology, Emory University School of Public Health, Atlanta, Georgia, USA.
Norrina AllenDepartment of Preventive Medicine, Northwestern University, Chicago, Illinois, USA.
Kristine YaffeDepartment of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, California, USA.
Mercedes CarnethonDepartment of Preventive Medicine, Northwestern University, Chicago, Illinois, USA.

Funding

ARIC Neurocognitive Study (ARIC-NCS)U01HL096902 · NHLBI · UNIVERSITY OF MINNESOTA · PI LUTSEY, PAMELA L. · 2010 to 2018
$7.4M
RESEARCH TRAINING IN CVD EPIDEMIOLOGY AND PREVENTIONT32HL069771 · NHLBI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI Mercedes Renee Carnethon · 2003 to 2026
$5.9M
NHLBI NIH HHS T32 HL069771NHLBI NIH HHS U01 HL096902
6 · The paper itself

Abstract

backgroundRecent estimates suggest that dementia incidence is decreasing in the US possibly due to better management of cardiovascular disease (CVD) risk factors, but these studies lack repeated cross-sectional assessment among a representative US sample. Our objective was to assess temporal trends in cognitive performance in relation to CVD risk factors among older National Health and Nutrition Examination Survey (NHANES) participants.

methodsWe used repeated cross-sectional assessment of 5711 participants ≥60 years of age from four NHANES cycles: 1999-2000, 2001-2002, 2011-2012 and 2013-2014. Cognitive function was assessed during each cycle with the Digit Symbol Substitution Test (DSST). We estimated mean DSST score at each cycle and annual trend in DSST before and after adjustment for age, sex, race/ethnicity, education, smoking status, blood pressure, glucose status and body mass index.

resultsDSST scores was significantly higher for 2011-2012 (difference: 6.7, 95% CI 4.4 to 9.0) and 2013-2014 (difference: 6.2, 95% CI 4.0 to 8.5), but not 2001-2002 (difference: 2.3, 95% CI -0.01 to 4.6) as compared with 1999-2000 before adjustment. We observed a linear trend for higher annual DSST score before adjustment (DSST/year: 0.44, 95% CI 0.31 to 0.57) and after adjustment for age, sex, race/ethnicity, educational attainment and CVD risk factors (DSST/year: 0.17, 95% CI 0.08 to 0.26). Educational attainment was most strongly associated with the attenuation in the trend in cognitive function (77% of trend attenuation and 20% of variance in DSST).

conclusionCognitive function is improving over time for US adults aged ≥60 years. These improvements are strongly associated with greater educational attainment and irrespective of the changing US demographic and cardiovascular health profiles.

Indexed as

Educational StatusAdultAgedCardiovascular DiseasesCognitionCognition DisordersCross-Sectional StudiesFemaleHumansMaleMiddle AgedNutrition SurveysPopulation Surveillancecardiovascular disease risk factorscognitioneducationepidemiological methods

Identifiers

PMID30885985
PMCPMC7240358

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Registered trials

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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.