Table 4 Mean differences (change in BMIz from 2002 to 2017 by percentile)
| Â | Difference | 95% CI |
|---|---|---|
Girls | ||
Percentile | ||
 5 | 0.21 | (0.02, 0.44) |
 10 | 0.31 | (0.12, 0.51) |
 25 | 0.33 | (0.19, 0.47) |
 50 | 0.29 | (0.15, 0.43) |
 75 | 0.35 | (0.19, 0.51) |
 90 | 0.30 | (0.10, 0.51) |
 95 | 0.22 | (0.15, 0.58) |
Boys | ||
Percentile | ||
 5 | 0.09 | (−0.14,0.32) |
 10 | −0.06 | (−0.22, 0.11) |
 25 | −0.05 | (−0.20,0.09) |
 50 | −0.03 | (−0.14, 0.09) |
 75 | 0.06 | (−0.08, 0.21) |
 90 | 0.00 | (−0.18,0.17) |
 95 | 0.09 | (−0.11,0.29) |