TABLE 1

Cohort Characteristics

Characteristicn = 21 062
Age, y13.8 ± 1.7 (10–19)
Sex
 Girl10 967 (52%)
 Boy10 095 (48%)
Race/ethnicity
 Hispanic7394 (35%)
 White6943 (33%)
 African American5259 (25%)
 Asian1466 (7%)
 Height, cm159.7 ± 10.0 (97.5–203)
 Height percentile52.5 ± 30.5 (0–100)
 Weight, kg57.8 ± 16.6 (21–178)
 Weight percentile66.0 ± 28.6 (0–100)
 BMI22.4 ± 5.2 (9–72)
 BMI percentile67.4 ± 28.0 (0–100)
BMI category
 Normal weight for height13 307 (63%)
 Overweight3851 (18%)
 Obese3904 (19%)
 First screening SBP, mm Hg112.2 ± 10.9 (72–168)
 First screening DBP, mm Hg61.8 ± 7.5 (36–106)
 First screening SBP index0.9 ± 0.1 (0.6–1.3)
 First screening DBP index0.8 ± 0.1 (0.4–1.3)
 First screening, hypertensive after 1 screen2189 (10.4%)
 Follow-up, hypertensive after 2 screens915 (4.3%)
 Final, hypertension after 3 screens569 (2.7%)
  • Continuous variables reported as mean ± SD (minimum – maximum), and categorical variables reported as n (%). BP index defined as BP/95th percentile.