Cited by 520Dementia and Cognitive Impairment ResearchMenopause: Health Impacts and TreatmentsCancer-related cognitive impairment studies

Diabetes, impaired fasting glucose, and development of cognitive impairment in older women

Yaffe, K., Blackwell, T., Kanaya, A. M., Davidowitz, N., Barrett-Connor, E., Krueger, K.·2004·Neurology

Abstract

OBJECTIVE: To investigate the association between diabetes and impaired fasting glucose (IFG) and cognition and risk of developing both dementia and mild cognitive impairment (MCI) in older women. METHODS: The authors analyzed data from a 4-year randomized trial of raloxifene among 7,027 osteoporotic postmenopausal women (mean age, 66.3 years) at 178 sites. Diabetes was defined by history, fasting blood glucose > or =7.0 mmol/L (> or =126 mg/dL), or use of hypoglycemic agents; IFG was defined as fasting glucose <7.0 mmol/L but >6.11 mmol/L (110 mg/dL); all others were considered to have normal glucose (NG). The main outcome was baseline and 4-year change on five standardized cognitive tests (z scores with lower scores indicating worse performance) and risk of developing clinically significant impairment (dementia, mild cognitive impairment, or very low cognitive score). RESULTS: A total of 267 (3.8%) women had diabetes and 297 (4.2%) had IFG. Women with IFG had worse baseline cognitive scores compared to women with NG but better scores than diabetics (age-adjusted composite z score based on five tests: NG 0.40, 95% CI 0.30 to 0.49; IFG 0.14, 95% CI -0.36 to 0.64; diabetics -0.78, 95% CI -1.23 to -0.33; p < 0.001). There was greater 4-year decline among diabetics (age and treatment-adjusted composite z score: NG -0.05, 95% CI -0.16 to 0.05; IFG 0.11, 95% CI -0.53 to 0.75; diabetics -1.00, 95% CI -1.50 to -0.50; p = 0.001). Further adjustment for education, race, and depression led to similar results. Risk of developing cognitive impairment among women with IFG or diabetes was increased by almost twofold (age and treatment-adjusted OR = 1.64; 95% CI 1.03 to 2.61 for IFG; OR = 1.79; 95% CI 1.14 to 2.81 for diabetics). CONCLUSIONS: Diabetic as well as pre-diabetic women have impaired cognitive performance and greater risk of developing cognitive impairment.

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Crossref · 10.1212/01.wnl.0000134666.64593.ba

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  • Two included studies reported that participants with impaired fasting glucose or impaired glucose tolerance experience more cognitive decline than participants without.

    “Moreover, two of the studies included in this review reported that participants with impaired fasting glucose or impaired glucose tolerance experience more cognitive decline than participants without, further supporting a link between cognitive decline and hyperglycaemia [51, 69, 70].”

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Authors
Yaffe, K., Blackwell, T., Kanaya, A. M., Davidowitz, N., Barrett-Connor, E., & Krueger, K.
Affiliations
San Francisco VA Medical Center (US)
Venue
Neurology
Published
2004-08-24
Volume
63
Issue
4
Pages
658-663
ISSN
  • 0028-3878 (ISSN-L)
  • 1526-632X
OpenAlex
W2114456718
Cited by
520
References
35
Citations by year
2026: 11 · 2025: 12 · 2024: 12 · 2023: 9 · 2022: 14 · 2021: 22 · 2020: 24 · 2019: 21 · 2018: 22 · 2017: 16 · 2016: 28 · 2015: 32 · 2014: 31 · 2013: 25 · 2012: 37
FWCI
11.25
Type
journal article
Language
en
Open access
closed
Locations
  • Neurology (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute on Aging (R01AG021918)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Menopause: Health Impacts and Treatments
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Cancer-related cognitive impairment studies
Keywords
diabetes mellitus, impaired fasting glucose, cognitive impairment, dementia, mild cognitive impairment, older women, postmenopausal women, cognitive decline, glucose metabolism, osteoporosis
MeSH terms
Age Factors, Aged, Blood Glucose, Brain, Cardiovascular Diseases, Cognition Disorders, Dementia, Depression, Diabetes Mellitus, Fasting, Female, Follow-Up Studies, Humans, Hypoglycemic Agents, Magnetic Resonance Imaging, Middle Aged, Obesity, Prediabetic State, Psychological Tests, Risk, Tomography, X-Ray Computed, Osteoporosis, Postmenopausal, Comorbidity, Odds Ratio, Randomized Controlled Trials as Topic, Raloxifene Hydrochloride

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