Table 1. Characteristics of the study population.
| Characteristic | Pubertal (n = 37) | Postpubertal (n = 43) | |
|---|---|---|---|
| Age, years | 13.3 ± 1.8 | 15.9 ± 2.1 | |
| Sex, % | |||
| Female | 37.8 | 60.5 | |
| Male | 62.2 | 39.5 | |
| Nutritional status, % | |||
| Normal weight | 27.0 | 39.5 | |
| Overweight | 8.1 | 14.0 | |
| Obesity | 64.9 | 46.5 | |
| Body mass index, kg/m2 | 27.9 (21.7-31.0) | 27.6 (21.8-32.2) | |
| Body mass index-for-age z-score | 1.92 (0.84-2.27) | 1.57 (0.56-2.06) | |
| Waist circumference, cm | 92.5 (73.5-104.0) | 90.0 (73.5-97.0) | |
| Lean body mass, kg | 48.7 ± 12.7 | 52.4 ± 14.0 | |
| Plasma glucose, mg/dL | 90 ± 7 | 86 ± 7 | |
| Plasma insulin, mU/L | 13.4 (8.0-19.6) | 10.3 (6.9-12.7) | |
| HOMA-IR | 2.81 (1.67-4.32) | 2.11 (1.49-2.83) | |
| Insulin sensitivity index, mg/kgLBM/min per mU/L × 100 | 0.10 (0.06-0.29) | 0.13 (0.06-0.24) | |
HOMA-IR: homeostasis model assessment of insulin resistance; LBM: lean body mass.
SI conversion factors: to convert glucose to millimoles per liter, multiply by 0.0555; and to convert insulin to picomoles per liter, multiply by 6.
Data are presented as the mean ± standard deviation or as the median (interquartile ranges).