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Table 1 Definitions of overweight and obesity in school-aged children and adolescents

From: Effects of nutrition intervention strategies in the primary prevention of overweight and obesity in school settings: a protocol for a systematic review and network meta-analysis

Organization Definition of childhood overweight and obesity
World Health Organization Children and adolescents aged 5–19 years (WHO 2007 Growth Reference [65])
Overweight: BMI >1 standard deviation (SD) above WHO growth standard median (equivalent to BMI 25 kg/m2 at 19 years)
Obesity: BMI >2 SDs above WHO growth standard median (equivalent to BMI 30 kg/m2 at 19 years)
Centers for Disease Control and Prevention (CDC) Children and adolescents aged 2–20 years (CDC 2000 Growth Charts [66])
Sex- and age-specific BMI percentiles
Overweight: BMI ≥ 85th to 94th percentile
Obesity: BMI ≥95th percentile
International Obesity Task Force (IOTF) Children and adolescents aged 2–18 years (IOTF 2000 Reference [67])
International sex- and age-specific BMI cut-off points, linked to the adult BMI cut-off points 25 kg/m2 (overweight) and 30 kg/m2 (obesity)