1. Centers for Disease Control and Prevention (CDC), 2012.
2. Ogden CL, Carroll MD, Kit BK, and Flegal KM, “Prevalence of Obesity and Trends in Body Mass Index Among US Children and Adolescents, 1999–2010,” Journal of the American Medical Association 307, no. 5 (2012): 483–490; and National Center for Health Statistics, Health, United States, 2011: With Special Features on Socioeconomic Status and Health (Hyattsville, MD: U.S. Department of Health and Human Services, 2012).