Table 1.
Characteristics of subjects examined at age 2 years (range 22–30 months)
| Male | Female | P value | |
|---|---|---|---|
| n | 598 | 567 | |
| Age (years) | 2.15 ± 0.11 | 2.14 ± 0.11 | 0.07 |
| Height (cm) | 88.8 ± 3.6 | 87.5 ± 3.6 | <0.001 |
| Height Z score | 0.19 ± 1.15 | 0.12 ± 1.11 | 0.28 |
| Weight (kg) | 13.9 ± 1.6 | 13.2 ± 1.6 | <0.001 |
| Weight Z score | 0.64 ± 1.01 | 0.57 ± 1.02 | 0.19 |
| BMI (kg/m2) | 17.6 ± 1.5 | 17.2 ± 1.6 | <0.001 |
| BMI Z score | 0.67 ± 1.05 | 0.59 ± 1.09 | 0.18 |
| BMI Z score ≥85% | 219/587 (37.3) | 183/554 (33.0) | 0.13 |
| BMI Z score ≥95% | 104/587 (17.7) | 86/554 (15.5) | 0.32 |
| Head circumference (cm) | 50.3 ± 1.4 | 49.1 ± 1.4 | <0.001 |
| Head circumference Z score | −0.12 ± 1.05 | −0.09 ± 1.18 | 0.64 |
| Arm circumference (cm) | 16.0 ± 1.5 | 15.8 ± 1.3 | 0.02 |
| Triceps skinfold (mm) | 11.4 ± 2.4 | 11.6 ± 2.5 | 0.13 |
| Subscapular skinfold (mm) | 6.3 ± 1.9 | 6.7 ± 2.0 | <0.001 |
| Suprailiac skinfold (mm) | 7.8 ± 3.0 | 8.4 ± 3.0 | 0.002 |
| Sum of skinfolds (mm) | 25.5 ± 6.1 | 26.7 ± 6.1 | 0.001 |
Data are means ± SD or n (%).