Differences in anthropometric measures between boys and girls at baseline
| Boys | Girls | ||||
|---|---|---|---|---|---|
| Statistics | Mean (SD)* | Mean (SD)* | |||
| Variable | N | Median [q1; q3] | N | Median [q1; q3] | p Value† |
| Weight (kg) | 235 | 22.1 [19.8; 25.0] | 228 | 22.1 [19.4; 24.7] | 0.837 |
| Height (cm) | 235 | 120.0 (6.3)* | 229 | 119.5 (6.0)* | 0.334 |
| BMI (kg/m2) | 235 | 15.3 [14.3; 16.6] | 228 | 15.4 [14.3; 17.0] | 0.785 |
| BMI SD-score (British 1990) | 235 | 0.01 (1.5)* | 228 | 0.03 (1.3)* | 0.879 |
| Waist circumference (cm) | 234 | 53.7 [51.1; 57.2] | 229 | 54.1 [50.7; 57.9] | 0.632 |
| Waist to height ratio | 234 | 0.45 [0.42; 0.47] | 229 | 0.46 [0.43; 0.49] | 0.199 |
| Biceps (mm) | 232 | 6.1 [4.7; 8.4] | 225 | 7.2 [5.7; 9.7] | <0.001 |
| Triceps (mm) | 232 | 9.4 [7.6; 12.0] | 225 | 11.1 [9.3; 14.2] | <0.001 |
| Subscapular (mm) | 230 | 5.7 [4.8; 7.4] | 224 | 6.6 [5.6; 8.9] | <0.001 |
| Suprailiac (mm) | 231 | 5.0 [4.0; 6.8] | 224 | 6.5 [5.0; 9.6] | <0.001 |
| Thigh (mm) | 172 | 12.4 [10.0; 15.8] | 179 | 15.4 [12.2; 19.1] | <0.001 |
| Total skinfolds (mm) | 172 | 38.4 [31.6; 48.4] | 178 | 47.1 [37.6; 60.4] | <0.001 |
| 2 Central skinfolds (mm) | 230 | 10.6 [8.9; 14.2] | 223 | 13.1 [10.8; 18.6] | <0.001 |
| 3 Peripheral skinfolds (mm) | 172 | 27.5 [22.9; 35.4] | 178 | 34.1 [27.4; 42.3] | <0.001 |
| Central-to-peripheral ratio | 172 | 0.40 [0.35; 0.46] | 178 | 0.41 [0.36; 0.47] | 0.257 |
*Mean and Standard Deviation (SD) are reported for variables that are normally distributed. †Two-sample independent t test or non-parametric Wilcoxon-Mann-Whitney rank sum test depending on underlying normality.
BMI, body mass index.