Table 1—

Characteristics of normal BMI (G0), overweight (G1), and obese (G2) groups

G0G1G2
n463023
Age (years)14.4 ± 2.715.7 ± 2.614.3 ± 2.7
Sex (% male)52.046.743.5
Race (% white)63.063.056.5
Weight (kg)*50.2 ± 12.366.5 ± 10.081.6 ± 14.4
Height (cm)158.3 ± 11.4160.4 ± 10.5159.3 ± 9.6
BMI (kg/m2)*19.7 ± 2.725.6 ± 1.732.0 ± 4.3
Tanner (median)5.05.05.0
SBP (mmHg)113.8 ± 11.5117.5 ± 13.2130.6 ± 15.3
DBP (mmHg)74.3 ± 12.577.2 ± 9.082.8 ± 11.9
Acanthosis nigricans (%)¶8.716.765.2
Waist (cm)*72.7 ± 9.388.8 ± 8.9106.2 ± 8.6
Birth weight (g)3,121.5 ± 651.33,450.0 ± 737.73,633.4 ± 992.7
Total cholesterol (mg/dl)147.1 ± 30.2157.2 ± 29.6160.6 ± 35.1
HDL cholesterol (mg/dl)43.6 ± 6.043.3 ± 7.241.5 ± 7.0
LDL cholesterol (mg/dl)88.0 ± 25.898.6 ± 24.499.2 ± 31.2
Triglycerides (mg/dl)76.5 ± 34.075.9 ± 26.8100.0 ± 39.1
Uric acid (mg/dl)4.2 ± 1.04.9 ± 1.35.4 ± 1.6
Fasting glucose (mg/dl)79.7 ± 9.781.3 ± 9.881.1 ± 11.7
2-h blood glucose (mg/dl)84.6 ± 19.291.5 ± 16.888.7 ± 15.5
Fasting serum insulin (μU/ml)7.3 ± 3.610.0 ± 4.613.9 ± 6.7
2-h serum insulin (μU/ml)33.7 ± 26.650.1 ± 41.670.1 ± 41.1
β-Cell function (%)§104.2 ± 36.7158.1 ± 168.0173.5 ± 89.2
Insulin sensitivity (%)161.2 ± 103.2101.8 ± 44.890.4 ± 77.0
HOMA-IR1.5 ± 0.82.0 ± 1.02.8 ± 1.5
  • Data are means ± SD unless otherwise indicated.

  • *

    * P < 0.05 for G0 vs. G1, G0 vs. G2, and G1 vs. G2;

  • P < 0.05 for G2 vs. G0 and G2 vs. G1;

  • P < 0.05 for G0 vs. G2 and G0 vs. G1;

  • §

    § P < 0.05 for G2 vs. G0. DBP, diastolic blood pressure.