Table 1 Descriptive variables by age and sex.
| Boys (n = 1042) | Girls (n = 1066) | Boys (n = 926) | Girls (n = 1038) | |
|---|---|---|---|---|
| Age (years) | 9.7 (0.4) | 9.6 (0.4) | 15.5 (0.5) | 15.5 (0.5) |
| Weight (kg) | 33.4 (6.9) | 32.8 (7.0) | 61.7 (10.3) | 55.9 (9.1) |
| Height (cm) | 138.4 (6.5) | 137.6 (6.6) | 172.7 (7.7) | 163.7 (6.8) |
| Body mass index (kg/m2) | 17.3 (2.6) | 17.2 (2.7) | 20.6 (2.8) | 20.8 (3.1) |
| Sum of 4 skinfolds (mm) | 32.1 (17.6) | 38.1 (18.1) | 33.6 (16.5) | 50.3 (18.4) |
| Waist circumference (cm) | 60.3 (6.3) | 58.1 (6.5) | 72.1 (6.8) | 67.9 (7.0) |
| Systolic BP (mm Hg) | 101.8 (9.3) | 100.7 (9.0) | 113.4 (12.0) | 106.2 (9.2) |
| Diastolic BP (mm Hg) | 69.6 (7.3) | 60.1 (6.9) | 62.0 (7.0) | 63.0 (6.7) |
| Cardiorespiratory fitness (Wmax/kg) | 3.0 (0.6) | 2.5 (0.6) | 3.5 (0.6) | 2.5 (0.6) |
Values are mean (SD).
BP, Blood pressure.