TABLE 1

Sample Demographic Characteristics, NHANES 1999–2008 (N = 3383)

Characteristicn%
Gender
 Male177152
 Female161248
Current age, y
 12–1390324
 14–1581425
 16–1787427
 18–1979224
Race/ethnicity
Non-Hispanic White93664
Non-Hispanic Black104114
Hispanic127016
BMIa
 Normal wt214266
 Overweight58016
 Obese66118
  • a Based on the 2000 Centers for Disease Control gender-specific growth charts for the United States. Available at www.cdc.gov/growthcharts. Overweight and obesity are defined as having a BMI within the 85th to <95th percentile or ≥95th percentile, respectively. Normal wt was defined as having an age- and gender-specific BMI >5th to <85th percentile.