Evidence map›Paper›PMID 33868373›Full record

ArticleFrontiers in genetics2021

Type 2 Diabetes and Cognitive Status in the Health and Retirement Study: A Mendelian Randomization Approach.

Erin B Ware, Cristina Morataya, Mingzhou Fu, Kelly M Bakulski

Open access · goldAbstract read
In one paragraph

Article in Frontiers in genetics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 2 pooled it
3.3field-weighted citation impact, top 8% 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

15 citing papers in PubMed, 2 syntheses or guidelines pooled it, 22 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
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  6. Review
  7. Mendelian randomization study of diabetes and dementia in the Million Veteran Program.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2023
    Article
  8. Article
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  12. Diabetes and dementia: Clinical perspective, innovation, knowledge gaps.Journal of diabetes and its complications · 2022
    Review
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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

4 authors at 2 institutions in 1 country.

Erin B WarePopulation Neurodevelopment and Genetics, Survey Research Center, Institute for Social Research, University of Michigan, Ann Arbor, MI, United States.
Cristina MoratayaPopulation Neurodevelopment and Genetics, Survey Research Center, Institute for Social Research, University of Michigan, Ann Arbor, MI, United States.
Mingzhou FuPopulation Neurodevelopment and Genetics, Survey Research Center, Institute for Social Research, University of Michigan, Ann Arbor, MI, United States.
Kelly M BakulskiDepartment of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, United States.
University of Michigan–Ann Arbor · USAnn Arbor Center for Independent Living · US

Funding

Michigan Alzheimer's Disease Core CenterP30AG053760 · NIA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI LIEBERMAN, ANDREW P · 2016 to 2020
$10.1M
Identifying modifiable aspects of gene-by-environment interplay in later-life cognitive declineRF1AG055654 · NIA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI FAUL, JESSICA, GALAMA, TITUS JOHANNES · 2017 to 2018
$4.3M
DNA Methylation, Genetics, and Modifiable Risk Factors of Dementia in a Nationally Representative, Multi-Ethnic Cohort - Diversity SupplementR01AG067592 · NIA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI BAKULSKI, KELLY, WARE, ERIN BAKSHIS · 2020 to 2025
$3.8M
Characterizing disparities in late-onset Alzheimer's disease risk through polygenic risk and epidemiologic factors in the Health and Retirement SurveyR01AG055406 · NIA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI BAKULSKI, KELLY, WARE, ERIN BAKSHIS · 2017 to 2020
$1.7M
Genomics for Social Scientists: 2022-2027R25AG053227 · NIA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Jessica Faul, COLTER M.S. MITCHELL · 2016 to 2026
$1.6M
NIA NIH HHS P30 AG053760NIA NIH HHS R01 AG055406NIA NIH HHS R01 AG067592NIA NIH HHS R25 AG053227NIA NIH HHS RF1 AG055654
6 · The paper itself

Abstract

backgroundType 2 diabetes mellitus (T2DM) and dementia are leading causes of mortality and disability in the US. T2DM has been associated with dementia; however, causality has not been clearly established. This study tested inferred causality between T2DM and dementia status using a Mendelian randomization approach.

methodsParticipants (50+ years) from the 2010 wave of the Health and Retirement Study of European or African genetic ancestry were included (

resultsAmong included participants, 20.9% had T2DM and 20.7% had dementia or cognitive impairment. Among European ancestry participants, T2DM was associated with 1.66 times odds of cognitive impairment non-dementia (95% confidence interval: 1.55-1.77) relative to normal cognition. A one standard deviation increase in cumulative genetic risk for T2DM was associated with 1.30 times higher odds of T2DM (95% confidence interval: 1.10-1.52). Cumulative genetic risk for T2DM was not associated with dementia status or cognitive-impaired non-dementia in either ancestry ( DISCUSSION: Consistent with prior research, T2DM was associated with cognitive status. Prevention of T2DM and cognitive decline are both critical for public health, however, this study does not provide evidence that T2DM is causally related to impaired cognition. Additional studies in other ancestries, larger sample sizes, and longitudinal studies are needed to confirm these results.

Indexed as

dementiahealth and retirement study (HRS)Mendelian randomizationpolygenic scoretype 2 diabetes mellitus

Identifiers

PMID33868373
PMCPMC8044888
OpenAlexW3149143793

What OpenQuestion holds

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LicenceCC BY
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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.