Objective: To investigate secular trends in pediatric obesity in Southern California between 2008 and 2013.
Study Design: In a population-based cohort study, measured weight and height were extracted from electronic health records of 1,331,931 patients aged 2-19 years who were enrolled in an integrated prepaid health plan between 2008 and 2013. Outcomes were the prevalence of overweight and obesity (body mass index-for-age ≥85th percentile).