214643 Associations between class III obesity, high waist circumference and depression: Results from NHANES 2005-2006

Monday, November 8, 2010 : 1:10 PM - 1:30 PM

Arlene Keddie, PhD , School of Nursing and Health Studies, Northern Illinois University, DeKalb, IL
Background and Significance: Although the affects of obesity on physical health have been well documented, the consequences for mental health are less certain. Objectives: (1) To investigate the association between obesity and depression in a representative sample of American adults, (2) to investigate gender and severity of obesity as modifiers of the association between depression and body mass index (BMI), (3) to determine if waist circumference (WC) is associated with depression, (4) to explore whether specific health behaviors or poor physical health are possible mediators of the obesity depression association. Methods: Logistic regression models were run using data from the National Health and Nutrition Examination Survey, 2005-2006 to investigate associations of BMI and WC with current depression as measured by the Patient Health Questionnaire. Results: In unadjusted analyses high WC (>88 cm in women and >102 cm in men), and severe obesity (BMI =>40) were associated with higher prevalence of depression in women only. Among the overweight (BMI =>25 and <30), high WC was associated with depression (odd ratio (OR) = 2.20, 95% confidence interval (CI): 1.10, 4.39). These associations weakened and lost statistical significance after adjusting for self-rated health and number of chronic conditions. Conclusion: These findings are supportive of an association between depression and obesity in women who are severely obese. They are also suggestive of an association between central abdominal fat and depression, even in those who are not obese. Poor physical health should be investigated further as a possible mediator of the obesity depression association.

Learning Areas:
Public health or related research
Social and behavioral sciences

Learning Objectives:
1)After attending this session, participants will be able to identify two effect modifiers of the obesity-depression association. 2)After attending this session, participants will be able to identify one possible mediator of the obesity-depression association. 3)After attending this session, participants will be able to discuss the association between central obesity and depression.

Keywords: Depression, Obesity

Presenting author's disclosure statement:

Qualified on the content I am responsible for because: I am qualified to be an abstract Author on the piece of research described because I conducted the analyses and wrote the paper, and because I am an assistant professor of epidemiology at Northern Illinois University.
Any relevant financial relationships? No

I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.