• Annual assessment of BMI is recommended for all children aged 2 to 20 years.
  • BMI is a screening measure. BMI-for-age screening provides an opportunity for health care providers to talk with patients and their families about growth.
  • For children aged 2 to 20 years, BMI is age- and sex-specific, and BMI categories are defined based on percentiles:
    • Underweight (BMI < 5th percentile).
    • Healthy weight (BMI ≥ 5th and < 85th percentile).
    • Overweight (BMI ≥ 85th and < 95th percentile).
    • Obesity (BMI ≥ 95th percentile).
    • Severe obesity (BMI ≥ 120% of the 95th percentile or BMI ≥ 35 kg/m2). Severe obesity is a subset of obesity.
  • The 2022 CDC Extended BMI-for-Age Growth Charts should be used to plot BMI and track growth for children aged 2 to 20 with very high BMIs (above the 97th percentile for sex and age).
  • The 2000 CDC BMI-for-Age Growth Charts should still be used for children and adolescents without obesity.
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