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Patient characteristics
| Series number, n | 24 |
| Mean age, years (range) | 16 (15–18) |
| Mean weight, kg (range) | 72 (59–95) |
| Mean BMI, kg/m2 (range) | 21.3 (17–26) |
| Bilateral pathology, n (%) | 19 (79.2%) |
| Unilateral pathology, n (%) | 5 (20.8%) |
| Grade according to Simon’s classification | |
| 1, n (%) | 0 |
| 2a, n (%) | 0 |
| 2b, n (%) | 16 (66.7%) |
| 3, n (%) | 8 (33.3%) |
BMI body mass index
