Figure. IWQOL-Kids Total scores from published studies of healthy weight, overweight, obese, severely obese, and Teen-LABS adolescents.

Note: Mean comparisons of each group to Teen-LABS adolescents were made using z-tests. * p ≤ 0.0001; † p = 0.50; ‡ p = 0.22

^aPublished means and SDs of 216 healthy weight adolescents (BMI=11–84.9 percentile; M_age 14.1 ± 2.29 years; 53.2% female; 53.7% non-Hispanic White, 29.9% African American, 1.9% Hispanic, 14.5% Other), 64 overweight adolescents (BMI =85–94.9 percentile; M_age 13.52 ± 2.20 years; 57.8% female; 51.6% non-Hispanic White, 32.3% African American, 9.7% Hispanic, 6.5% Other), and 362 obese adolescents (BMI ≥ 95^th percentile; M_age 14.04 ± 1.85 years; 63.8% female; 58.0% non-Hispanic White, 35.2% African American, 3.1% Hispanic, 3.7% Other) Kolotkin RL, Zeller MH, Modi AC, Samsa GP, Polanichka Quinlan N, Yanovski JA, et al. Assessing weight-related quality of life in adolescents. Obesity. 2006;14(3):448–57

^bPublished means and SDs of 111 obese youth (BMI ≥ 95^th percentile) presenting at a Pediatric Metabolic Syndrome clinic (M_age 14.1 ± 2.3 years; 59% female, Mean_BMI 35.6 ± 7.1; 65% Non-Hispanic White, 23% Hispanic, 7% African American, 5% Other). Nadeau K, Kolotkin RL, Boex R, Witten T, McFann KK, Zeitler P, et al. Health-related quality of life in adolescents with comorbidities related to obesity. J Adolesc Health. 2011;49:90–2.

^cPublished means and SDs of 30 severely obese adolescents presenting for pediatric lifestyle modification program (Mean_BMI 51.31 ± 6.0; M_age 15.76 ± 1.2 years; 66.7% female; 83.3% non-Hispanic White, 16.7% non-Hispanic Black) and 30 severely obese adolescents prior to bariatric surgery (Mean_BMI 61.81 ± 8.81; M_age 16.23 ± 1.34 years; 66.7% female; 83.3% non-Hispanic White, 16.7% non-hispanic Black). Modi AC, Loux TJ, Bell SK, Harmon CM, Inge TH, Zeller MH. Weight-specific health-related quality of life in adolescents with extreme obesity. Obesity. 2008;16(10):2266 – 71.