Figure 4.

Percentages of US children aged 12–13 years within the 95th, 96th, 97th, 98th, and ≥99th percentiles of height for age, 1996–2008. Percentages of children within each single percentile are weighted by using respective survey sample weights. Error bars represent 95% confidence intervals. Confidence interval estimates adjust for clustering of children within families. CDC, Centers for Disease Control and Prevention; NLSY79-Child, Children of the National Longitudinal Survey of Youth 1979 Cohort, 1996–2008.