Characteristics of patients treated for ALL with cranial irradiation and chemotherapy, and their siblings
| All patients (n = 94) | Siblings (n = 134) | Patients with siblings (n = 85) | |
| Male/female | 40/54 | 65/69 | 36/49 |
| Median age (y; mth) at diagnosis (range) | 4;5 (1;2–14;9) | n.a. | 4;5 (1;2–14;9) |
| Patients with 25/18 Gy irradiation | 72/22 | n.a. | 65/20 |
| Median age (y; mth) at evaluation (range) | 20;1 (14;8–31;6) | 19;0 (14;0–32.0) | 19;7 (14;4–31;2) |
n.a., not applicable.