Table 1.
Patient Characteristics in Relation to TEL Status
| Characteristic | Rearranged TEL | Germline TEL |
|---|---|---|
| Median age (years) | 4.4 (1.4-19.7) | 5.1 (1.1-21.1) |
| Age group | ||
| < 10 years | 222 (29%) | 531 (71%) |
| ≥ 10 years | 22 (13%) | 151 (87%) |
| Median WBC (× 109/L) | 12 (1-219) | 12 (1-848) |
| WBC group | ||
| < 50 × 109/L | 198 (27%) | 549 (73%) |
| ≥ 50 × 109/L | 46 (26%) | 133 (74%) |
| NCI risk group | ||
| Standard | 178 (29%) | 435 (71%) |
| High | 66 (21%) | 247 (79%) |
| Sex | ||
| Male | 123 (24%) | 382 (76%) |
| Female | 121 (29%) | 300 (71%) |
| Race | ||
| White | 184 (29%) | 447 (71%) |
| Black | 12 (16%) | 62 (84%) |
| Hispanic | 32 (21%) | 124 (79%) |
| Other | 16 (25%) | 49 (75%) |
| CNS Status | ||
| Negative | 232 (95.1%) | 586 (86.0%) |
| Positive | 12 (4.9%) | 96 (14.0%) |
| Day-15 marrow status | ||
| M1 | 214 (27%) | 566 (73%) |
| M2/M3 | 14 (18%) | 63 (82%) |
| Treatment study | ||
| 9201 | 7 (5%) | 145 (95%) |
| 9605 | 173 (37%) | 297 (63%) |
| 9406 | 64 (21%) | 240 (79%) |
| Median follow-up (yrs) | 8 (0.0-10.0) | 7.7 (0.0-10.0) |
| Total | 244 (26%) | 682 (74%) |