Table 1. Characteristics of the study population at each age.
| Age (years) |
|||||||
|---|---|---|---|---|---|---|---|
| 3 | 4 | 5 | 5.5 | 6.5 | 7 | ||
| Girls | n | 99 | 90 | 88 | 85 | 83 | 66 |
| Age (years) | 3.0 (0.04) | 4.0 (0.03) | 5.0 (0.03) | 5.5 (0.12) | 6.5 (0.03) | 7.0 (0.03) | |
| BMI (kg/m2) | 16.9 (1.4) | 16.8 (1.5) | 16.4 (1.5) | 16.6 (1.6) | 16.7 (1.9) | 16.9 (2.0) | |
| BMI z-score | 0.76 (0.84) | 0.91 (0.82) | 0.68 (0.76) | 0.77 (0.70) | 0.61 (0.73) | 0.58 (0.75) | |
| Waist girth (cm) | 50.3 (3.1) | 53.1 (3.9) | 54.0 (3.8) | 55.9 (4.4) | 56.5 (4.7) | 57.2 (5.4) | |
| Boys | n | 128 | 125 | 119 | 110 | 109 | 105 |
| Age (years) | 3.0 (0.04) | 4.0 (0.04) | 5.0 (0.03) | 5.5 (0.04) | 6.5 (0.04) | 7.0 (0.03) | |
| BMI (kg/m2) | 17.2 (1.1) | 16.8 (1.2) | 16.5 (1.2) | 16.4 (1.2) | 16.4 (1.3) | 16.5 (1.4) | |
| BMI z-score | 0.90 (0.81) | 0.85 (0.86) | 0.70 (0.78) | 0.66 (0.74) | 0.51 (0.70) | 0.49 (0.71) | |
| Waist girth (cm) | 50.2 (2.9) | 52.7 (3.1) | 53.8 (3.1) | 55.1 (3.2) | 56.0 (3.2) | 56.7 (3.6) | |
Data are presented as mean (SD) except for n.