Association between perceived stress, alcohol consumption levels and obesity in Koreans.

Background: Coping with stress often leads to unhealthy behaviors that can have an impact on the development of obesity. Methods: We analyzed perceived stress, alcohol consumption habits (alcohol consumption status, quantity, and alcohol use disorders identification test) and the anthropometrics of 6,229 subjects from the Korean National Health and Nutrition Examination Survey. The gender-based differences of the effect of the perceived level of stress on alcohol consumption habits and anthropometric measurements, as well as the interaction of the perceived level of stress and alcohol consumption habits on prevalence or ORs of obesity were analyzed. Results: The subjects with high perceived stress showed higher proportions for unhealthy alcohol consumption habits than those with low perceived stress [ORs (95% CIs)=1.354 (1.190-1.542), 1.953 (1.684-2.264), and 1.871 (1.600-2.188) for alcohol consumption status, alcohol consumption quantity, and alcohol use disorders identification test, respectively]. Males showed significant interactions between the perceived stress and all alcohol consumption habits with respect to obesity [ORs (95% CIs)=1.279 (1.056-1.549), 1.812 (1.520-2.158), and 1.401 (1.172-1.675) for alcohol consumption status, alcohol consumption quantity, and alcohol use disorders identification test, respectively]. Among females, interactions between the perceived stress and alcohol consumption status [ORs (95% CIs)=0.704 (0.599-0.826)] and alcohol consumption quantity [ORs (95% CIs)=0.929 (0.537-7.36)] in relation to obesity were found to be significant. Conclusion: Our study demonstrated that the perceived stress influenced alcohol consumption habits that may have impacted obesity.