Cited by 284Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsDiabetes, Cardiovascular Risks, and Lipoproteins

Mid- and Late-Life Diabetes in Relation to the Risk of Dementia

Open access
Xu, Weili, Qiu, Chengxuan, Gatz, Margaret, Pedersen, Nancy L., Johansson, Boo, Fratiglioni, Laura·2009·Diabetes

Abstract

OBJECTIVE: We aimed to verify the association between diabetes and the risk of dementia, Alzheimer's disease, and vascular dementia in twins and to explore whether genetic and early-life environmental factors could contribute to this association. RESEARCH DESIGN AND METHODS: This study included 13,693 twin individuals aged > or =65 years. Dementia was diagnosed according to DSM-IV (Diagnostic Manual of Mental Disorders, 4th ed.) criteria. Information on diabetes was collected from the inpatient registry and self- or informant-reported history of diabetes. Data were analyzed following two strategies: 1) unmatched case-control analysis for all participants using generalized estimating equation (GEE) models and 2) cotwin matched case-control analysis for dementia-discordant twin pairs using conditional logistic regression. RESULTS: Of all participants, 467 were diagnosed with dementia, including 292 with Alzheimer's disease and 105 with vascular dementia, and an additional 170 were diagnosed with questionable dementia. Diabetes was present in 1,396 subjects. In GEE models, diabetes was associated with adjusted odds ratios (ORs) (95% CI) of 1.89 (1.51-2.38) for dementia, 1.69 (1.16-2.36) for Alzheimer's disease, and 2.17 (1.36-3.47) for vascular dementia. Compared with late-life diabetes (onset age > or =65 years), the risk effect of mid-life diabetes (onset age <65 years) on dementia was stronger. Conditional logistic analysis of 210 dementia-discordant twin pairs led to ORs of 2.41 (1.05-5.51) and 0.68 (0.30-1.53) for dementia related to mid- and late-life diabetes, respectively. CONCLUSIONS: Diabetes increases the risk of Alzheimer disease and vascular dementia. The risk is stronger when diabetes occurs at mid-life than in late life. Genetic and early-life environmental factors might contribute to the late-life diabetes-dementia association but could not account for the mid-life diabetes-dementia association.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.2337/db08-0586

Cites

52 of 52 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. [27]American Psychiatric Association: Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition. Washington, DC, American Psychiatric Association, 1994

Cited by

Sorted by citations

Authors
Xu, W., Qiu, C., Gatz, M., Pedersen, N. L., Johansson, B., & Fratiglioni, L.
Affiliations
  • Karolinska Institutet (SE)
  • University of Southern California (US)
  • University of Gothenburg (SE)
Corresponding author
Xu, Weili
Venue
Diabetes
Published
2009-01-01
Volume
58
Issue
1
Pages
71-77
ISSN
  • 0012-1797 (ISSN-L)
  • 1939-327X
OpenAlex
W2116839722
Cited by
284
References
52
Citations by year
2026: 10 · 2025: 6 · 2024: 10 · 2023: 18 · 2022: 11 · 2021: 23 · 2020: 19 · 2019: 25 · 2018: 12 · 2017: 14 · 2016: 16 · 2015: 14 · 2014: 29 · 2013: 19 · 2012: 18
FWCI
9.34
Type
journal article
Language
en
Open access
Licence
cc-by-nc-nd
Locations
  • Diabetes (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
  • Alzheimer's Association (ZEN-02-3895)
  • Vetenskapsrådet
  • Swedish Brain Power
  • National Institute on Aging (R01-AG08724, AG 08724, R01AG008724)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
Keywords
dementia, Alzheimer's disease, vascular dementia, twins, genetic factors, dementia risk
MeSH terms
Aged, Alzheimer Disease, Dementia, Diabetes Mellitus, Type 2, Diseases in Twins, Female, Humans, Male, Risk Factors, Sweden, Logistic Models, Odds Ratio, Case-Control Studies

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review