| Age at diagnosis | 8.0 ± 0.1 (median: 8.0; interquartile range (IQR): 7.7-8.4) | 9.2 ± 0.2 (median: 9.2; range: 8.8-9.5) |
| Body mass index (BMI) | 18.6 ± 0.2 (median: 18.4; IQR: 16.8-19.8) | 21.4 ± 5.6 (median: 21.2; range: 15.9-27.1) |
| BMI SDS | 0.8 ± 0.8 (median: 0.78; IQR: 0.75-1.05) | 0.92 ± 1.0 (median: 0.91; range: 0-2.6) |
| Height (cm) | 135.1 ± 0.5 (median 135; IQR: 131-139) | 147.7 ± 3.7 (median: 144; range: 144-155) |
| Height SDS | 1.0 ± 0.1 (median: 0.98; IQR: 0.8 -1.1) | 1.6 ± 0.7 (median: 1.5; range: 1.4-2.34) |
| Height velocity (cm/year) | 9.5 ± 0.6 (median:10; IQR: 7-12) |
| BA (year) | 10.5 ± 0.1 (median:10.5; IQR: 10-11) |
| BA- CA (year) | 2.4 ± 0.1 (median: 2.5; IQR: 1.9-3) |
| Basal LH (mUI/ml) | 2.5 ± 0.3 (median: 1.9; IQR: 0.6-3.7) |
| Basal FSH (mUI/ml) | 4.7 ± 0.2 (median: 4.4; IQR: 3.5-5.6) |