Journal
DIABETES CARE
Volume 37, Issue 11, Pages 2982-2988Publisher
AMER DIABETES ASSOC
DOI: 10.2337/dc14-0715
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Funding
- Pinchas Borenstein Talpiot Medical Leadership Program (Chaim Sheba Medical Center, Tel Hashomer, Israel)
- Israel Defense Forces Medical Corps.
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OBJECTIVE Diabetes is a risk factor for an accelerated rate of cognitive decline and dementia. However, the relationship between cognitive function and the subsequent development of diabetes is unclear. RESEARCH DESIGN AND METHODS We conducted a historical-prospective cohort study merging data collected at premilitary recruitment assessment with information collected at the Staff Periodic Examination Center of the Israeli Army Medical Corps. Included were men aged 25 years or older without a history of diabetes at the beginning of follow-up with available data regarding their general intelligence score (GIS), a comprehensive measure of cognitive function, at age 17 years. RESULTS Among 35,500 men followed for a median of 5.5 years, 770 new cases of diabetes were diagnosed. After adjustment for age, participants in the lowest GIS category had a 2.6-fold greater risk for developing diabetes compared with those in the highest GIS category. In multivariable analysis adjusted for age, BMI, fasting plasma glucose, sociogenetic variables, and lifestyle risk factors, those in the lowest GIS category had a twofold greater risk for incident diabetes when compared with the highest GIS category (hazard ratio 2.1 [95% CI 1.5-3.1]; P < 0.001). Additionally, participants in the lowest GIS category developed diabetes at a mean age of 39.5 +/- 4.7 years and those in the highest GIS group at a mean age of 41.5 +/- 5.1 years (P for comparison 0.042). CONCLUSIONS This study demonstrates that in addition to a potential causal link between diabetes and enhanced cognitive decline, lower cognitive function at late adolescence is independently associated with an elevated risk for future diabetes.
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