Centers for Disease Control and Prevention

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Overview of the CDC Growth Charts

The CDC Growth Chart Reference Population
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5. The CDC Growth Chart Reference Population

Prevalence of OBESITY in NHANES III

Slide showing Age-Adjusted Prevalence of Overweight from NHANES I to III

1 ≥95th percentile BMI-for-age.


There was a significant increase in the prevalence of obesity in the NHANES III (green bar) for boys and girls ages 6 to 11 and 12 to 19 when compared to NHANES I (purple bar) and II (white bar). If data from NHANES III had been included, the resulting 95th percentile curve would have been higher, thus classifying fewer children and teens as obese.