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Depression and Insulin Resistance: Cross-sectional associations in young adults

Citation

Pearson, S and Schmidt, M and Patton, G and Dwyer, T and Blizzard, L and Otahal, P and Venn, A, Depression and Insulin Resistance: Cross-sectional associations in young adults, Diabetes Care, 33, (5) pp. 1128-1133. ISSN 0149-5992 (2010) [Refereed Article]


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Copyright Statement

Copyright 2010 by the American Diabetes Association

DOI: doi:10.2337/dc09-1940

Abstract

OBJECTIVE To examine the association between depressive disorder and insulin resistance in a sample of young adults using the Composite International Diagnostic Interview to ascertain depression status. RESEARCH DESIGN AND METHODS Cross-sectional data were collected from 1,732 participants aged between 26 and 36 years. Insulin resistance was derived from blood chemistry measures of fasting insulin and glucose using the homeostasis model assessment method. Those identified with mild, moderate, or severe depression were classified as having depressive disorder. RESULTS The 12-month prevalence of depressive disorder was 5.4% among men and 11.7% among women. In unadjusted models mean insulin resistance was 17.2% (95% CI 0.736.0%, P = 0.04) higher in men and 11.4% (1.522.0%, P = 0.02) higher in women with depressive disorder. After adjustment for behavioral and dietary factors, the increased level of insulin resistance associated with depressive disorder was 13.2% (−3.1 to 32.3%, P = 0.12) in men and 6.1% (−4.1 to 17.4%, P = 0.25) in women. Waist circumference was identified as a mediator in the relationship between depression and insulin resistance, reducing the coefficient in the fully adjusted models in men by 38% and in women by 42%. CONCLUSIONS A positive association was found between depressive disorder and insulin resistance in this population-based sample of young adult men and women. The association seemed to be mediated partially by waist circumference.

Item Details

Item Type:Refereed Article
Research Division:Medical and Health Sciences
Research Group:Public Health and Health Services
Research Field:Mental Health
Objective Division:Health
Objective Group:Clinical Health (Organs, Diseases and Abnormal Conditions)
Objective Field:Diabetes
Author:Pearson, S (Dr Sue Pearson)
Author:Schmidt, M (Dr Michael Schmidt)
Author:Blizzard, L (Professor Leigh Blizzard)
Author:Otahal, P (Mr Petr Otahal)
Author:Venn, A (Professor Alison Venn)
ID Code:64859
Year Published:2010
Web of Science® Times Cited:45
Deposited By:Menzies Institute for Medical Research
Deposited On:2010-09-08
Last Modified:2011-04-29
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