Table 1: Basic characteristics of the subjects (total no. = 1308).

Boys ( )Girls ( ) value*

Age (years)11.9 ± 1.712.0 ± 1.80.330
BMI (kg/m2)26.6 ± 2.926.2 ± 3.30.072
BMI percentile, no. (%)0.003
 85–8955 (6.7)25 (5.1)
 90–94191 (23.2)79 (16.3)
 >95576 (70.1)382 (78.6)
BF%36.4 ± 5.638.0 ± 5.3<0.001
Waist circumference (cm)88.4 ± 8.388.0 ± 8.90.436
Systolic blood pressure (mmHg)116 ± 14114 ± 130.002
Diastolic blood pressure (mmHg)64 ± 765 ± 70.090
Fasting glucose (mg/dL)87.0 ± 6.985.4 ± 7.8<0.001
Fasting insulin (µU/mL) 17.9 ± 11.7 19.9 ± 12.80.004
HOMA-IR 3.9 ± 2.7 4.3 ± 2.90.025
CRP (mg/dL) 0.2 ± 0.3 0.2 ± 0.40.918
Total cholesterol (mg/dL) 176.9 ± 31.5175.6 ± 29.80.479
Triglycerides (mg/dL)123.8 ± 62.5128.9 ± 63.40.155
HDL-cholesterol (mg/dL) 54.2 ± 12.4 53.0 ± 12.10.089
AST (U/L) 34.0 ± 18.1 26.4 ± 10.0<0.001
ALT (U/L) 47.6 ± 47.5 30.9 ± 20.5<0.001
GGT (U/L) 28.1 ± 13.8 22.4 ± 8.0<0.001
Tanner stage, no. (%)<0.001
 1339 (41.75)15 (3.13)
 2196 (24.14)166 (34.58)
 3225 (27.71)199 (41.46)
 452 (6.40)93 (19.38)
 57 (1.46)

Data are presented as mean ± SD except BMI percentile and tanner stage. *by Student’s -test.
BMI: body mass index; BF%: body fat percent; CRP: C-reactive protein; HDL: high density lipoprotein; AST: aspartate transaminase; ALT: alanine transaminase; GGT: gamma-glutamyltransferase; HOMA-IR: homeostasis model assessment of insulin resistance.