Table 2 Participants’ descriptive characteristics, grouped by sex and age (Mean (SD), unless stated otherwise)
| Â | Boys | Girls | ||||||
|---|---|---|---|---|---|---|---|---|
| Â | Y1&2 | Y4&5 | Y6&7 | Y8&9 | Y1&2 | Y4&5 | Y6&7 | Y8&9 |
n | 82 | 201 | 163 | 64 | 95 | 253 | 155 | 237 |
Age (y) | 6.0 (0.3) | 9.7 (0.5) | 10.7 (0.6) | 13.0 (0.4) | 6.0 (0.3) | 9.7 (0.5) | 10.7 (0.7) | 13.7 (0.5) |
Height (cm) | 116.5 (6.2) | 138.3 (6.7) | 143.8 (8.0) | 160.0 (8.8) | 115.8 (5.1) | 138.2 (7.2) | 144.3 (7.7) | 160.2 (6.4) |
Weight (kg) | 22.3 (3.7) | 34.5 (8.5) | 38.8 (10.1) | 53.5 (11.7) | 22.0 (3.7) | 35.7 (8.4) | 40.3 (11.0) | 55.2 (11.3) |
BMI (kg‧m2) | 16.3 (1.7) | 17.9 (3.1) | 18.6 (3.5) | 20.8 (4.1) | 16.3 (2.1) | 18.5 (3.2) | 19.2 (4.0) | 21.4 (3.9) |
BMI-z | 0.39 (0.97) | 0.48 (1.20) | 0.46 (1.38) | 0.79 (1.15) | 0.38 (1.30) | 0.55 (1.12) | 0.47 (1.31) | 0.58 (1.17) |
Normal-weight (%) | 73.0 | 77.0 | 72.0 | 69.0 | 78.0 | 70.0 | 72.0 | 76.0 |
Overweight/obese (%) | 27.0 | 23.0 | 28.0 | 31.0 | 22.0 | 30.0 | 28.0 | 24.0 |