August 2013

Document Type


Degree Name



Dept. of Public Health and Preventive Medicine


Oregon Health & Science University


Background. Obesity is a top public health priority in the 21st century. The prevalence of obesity has grown considerably over the past quarter century. Exposure to communities of higher obesity prevalence may be shifting the public’s perception of ideal weight to heavier weights. The divide between weight perception and objective weight measures may ultimately change weight related behaviors. Purpose. Our study investigates the relationship between obesity prevalence and weight related behaviors, and weight perception as a potential mediator for this pathway. Methods. We conducted a cross-sectional study using the Youth Risk Behavior Survey 2011. A total of 11,972 adolescents were included for analysis. All variables were self-reported. Data were stratified by sex and analyzed using multivariate logistic regression models adjusted for confounders and accounting for sampling weights. BMI was included as an interaction term in all models. Results. High obesity prevalence was associa




School of Medicine



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