Table 1.
Participant characteristics at age 9 and 12 y
| 9y (n = 517)* | 12y (n = 440)** | 9y (n = 369)*** | 12y (n = 369)*** | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| All participants with valid data | All participants with valid data | Participants with valid data at both 9 y and 12 y | Participants with valid data at 9 y and 12 y | |||||||||
| Mean | SD | Range | Mean | SD | Range | Mean | SD | Range | Mean | SD | Range | |
| Age (years) | 9.3 | 0.4 | 8.4 – 10.2 | 12.5 | 0.3 | 11.6 – 13.3 | 9.3 | 0.4 | 8.4 – 10.1 | 12.5 | .3 | 11.6 – 13.3 |
| Height (cm) | 135.6 | 6.3 | 116.1 – 154.6 | 154.6 | 7.8 | 129.5 – 176.2 | 135.2 | 6.2 | 116.1 – 154.1 | 154.7 | 7.7 | 129.5 – 174.9 |
| Weight (kg) | 33.4 | 7.5 | 19.2 – 70.8 | 49.5 | 12.0 | 23.6 – 112 | 33.0 | 7.2 | 19.2 – 67.1 | 49.6 | 11.9 | 23.6 – 112 |
| BMI (kg/m2) | 18.0 | 2.9 | 12.6 – 31.4 | 20.5 | 3.8 | 12.7 – 36.7 | 17.9 | 2.8 | 12.6 – 29.4 | 20.6 | 3.8 | 12.7 – 36.7 |
| BMI-Z score | 0.56 | 1.1 | −3.1 – 3.4 | 0.68 | 1.2 | −4.0 – 3.6 | 0.51 | 1.1 | −3.1 – 3.4 | 0.68 | 1.2 | −4.0 – 3.6 |
-*248 boys and 269 girls; **202 boys and 238 girls; ***168 boys and 201 girls