Table 3.
Univariate analysis of event free survival for infants enrolled on ARST0331 and ARST0531.
| Characteristic | No. of patients (%) | 5-year Event Free Survival | P (log-rank) | |
|---|---|---|---|---|
| Age (months) | ||||
| <12 | 52 (42) | 0.58 | 0.04 | |
| ≥12 | 72 (58) | 0.76 | ||
| Site | ||||
| Favorable | 44 (36) | 0.73 | 0.58 | |
| Unfavorable | 80 (65) | 0.66 | ||
| Histology | ||||
| Alveolar | 33 (27) | 0.63 | 0.56 | |
| Embryonal | 91 (73) | 0.70 | ||
| Tumor size (cm) | ||||
| ≤5 | 77 (62) | 0.75 | 0.05* | |
| >5 | 45 (36) | 0.55 | ||
| Unknown | 2 (2) | |||
| Stage | ||||
| 1 | 44 (35) | 0.73 | 0.16 | |
| 2 | 33 (27) | 0.79 | ||
| 3 | 47 (38) | 0.57 | ||
| Group | ||||
| I | 20 (16) | 0.90 | 0.04 | |
| II | 25 (20) | 0.71 | ||
| III | 79 (64) | 0.62 | ||
| Individualized therapy | ||||
| Yes | 53 (43) | 0.56 | 0.04 | |
| No | 71 (57) | 0.77 | ||
| Local therapy | ||||
| None | 21 (17) | 0.46 | ||
| Not delayed | 68 (55) | 0.78 | 0.17† | |
| Delayed | 35 (28) | 0.62 | ||
*
Unknown excluded
†
No local therapy excluded