Inclusion Criteria: All non-pregnant survey participants ages 2-17 years with height and weight measurements.
Exclusion Criteria: Pregnant females and children under 2 years of age because there is no agreed upon definition of healthy weight in infants and toddlers under 2 years of age.
Two years of data were pooled to create the estimates by population characteristics because of sample size limitations. Due to small sample sizes for NHANES data, 95% confidence intervals are provided, which are important for interpreting the variability around the prevalence point estimates.
This measure is calculated by the Centers for Disease Control and Prevention, National Center for Health Statistics from the National Health and Nutrition Examination Survey.