RT Journal A1 Simon GE, Von Korff M, Saunders K, et al T1 ASsociation between obesity and psychiatric disorders in the us adult population JF Archives of General Psychiatry JO Archives of General Psychiatry YR 2006 FD July 1 VO 63 IS 7 SP 824 OP 830 DO 10.1001/archpsyc.63.7.824 UL http://dx.doi.org/10.1001/archpsyc.63.7.824 AB Background  Epidemiologic data suggest an association between obesity and depression, but findings vary across studies and suggest a stronger relationship in women than men.Objective  To evaluate the relationship between obesity and a range of mood, anxiety, and substance use disorders in the US general population.Design  Cross-sectional epidemiologic survey.Setting  Nationally representative sample of US adults.Participants  A total of 9125 respondents who provided complete data on psychiatric disorder, height, and weight. Response rate was 70.9%.Main Outcome Measures  Participants completed an in-person interview, including assessment of a range of mental disorders (assessed using the World Health Organization Composite International Diagnostic Interview) and height and weight (by self-report).Results  Obesity (defined as body mass index [calculated as weight in kilograms divided by the square of height in meters] of ≥30) was associated with significant increases in lifetime diagnosis of major depression (odds ratio [OR], 1.21; 95% confidence interval [CI], 1.09-1.35), bipolar disorder (OR, 1.47; 95% CI, 1.12-1.93), and panic disorder or agoraphobia (OR, 1.27; 95% CI, 1.01-1.60). Obesity was associated with significantly lower lifetime risk of substance use disorder (OR, 0.78; 95% CI, 0.65-0.93). Subgroup analyses found no difference in these associations between men and women, but the association between obesity and mood disorder was strongest in non-Hispanic whites (OR, 1.38; 95% CI, 1.20-1.59) and college graduates (OR, 1.44; 95% CI, 1.14-1.81).Conclusions  Obesity is associated with an approximately 25% increase in odds of mood and anxiety disorders and an approximately 25% decrease in odds of substance use disorders. Variation across demographic groups suggests that social or cultural factors may moderate or mediate the association between obesity and mood disorder.