Occurrence of N regions between the DJHjunction of children with BCP ALL and their ages at diagnosis
| Age at diagnosis (y) . | No. of ALL/study . | N + n . | N . | Reference . |
|---|---|---|---|---|
| Younger than 1 year | 12 | 11 | 1 | This study |
| Younger than 3 years | 16 | 2 | 16 | Wassermann et al18 |
| 8 | 5 | 5 | Steenbergen et al19 | |
| 14 | 4 | 12 | Schneider et al15 | |
| Older than 3 years | 46 | 41 | 10 | Wassermann et al18 |
| 39 | 35 | 12 | Steenbergen et al19 |
| Age at diagnosis (y) . | No. of ALL/study . | N + n . | N . | Reference . |
|---|---|---|---|---|
| Younger than 1 year | 12 | 11 | 1 | This study |
| Younger than 3 years | 16 | 2 | 16 | Wassermann et al18 |
| 8 | 5 | 5 | Steenbergen et al19 | |
| 14 | 4 | 12 | Schneider et al15 | |
| Older than 3 years | 46 | 41 | 10 | Wassermann et al18 |
| 39 | 35 | 12 | Steenbergen et al19 |
Leukemias are considered N+ if one DJH junction has N nucleotides inserted. They are considered N− if one DJHjunction lacks N nucleotides. Leukemias are included in both groups if one rearrangement contains N nucleotides and the other does not.