| Patients | Years (mean, SD) |
| ||
| Number | Age pre-treatment | Age post-treatment | Treatment duration | |
| Girls | 29 | 9.2 (0.93) | 14.7 (1.43) | 4.6 (1.65) |
| Boys | 12 | 9.6 (1.30) | 15.3 (2.00) | 4.4 (1.54) |
| All | 41 | 9.4 (1.08) | 14.9 (1.61) | 4.5 (1.60) |