Comparison of EFS between two subgroups divided by risk factors
| Risk factor . | Subgroup . | No. of patients . | EFS (%) . | P . |
|---|---|---|---|---|
| Age | < 6 mo | 12 | 72.9 | .379 |
| ≥ 6 mo | 23 | 69.1 | ||
| Gender | Boys | 22 | 66.6 | .362 |
| Girls | 13 | 83.1 | ||
| WBC | < 100 000/μL | 23 | 72.0 | .843 |
| ≥ 100 000/μL | 12 | 74.1 | ||
| WBC | < 200 000/μL | 28 | 70.1 | .382 |
| ≥ 200 000/μL | 7 | 83.3 | ||
| FAB subtype | M4/M5 | 23 | 80.8 | .105 |
| non-M4/M5 | 12 | 56.1 | ||
| MLLrearrangements | Positive | 17 | 74.1 | .961 |
| Negative | 18 | 73.4 |
| Risk factor . | Subgroup . | No. of patients . | EFS (%) . | P . |
|---|---|---|---|---|
| Age | < 6 mo | 12 | 72.9 | .379 |
| ≥ 6 mo | 23 | 69.1 | ||
| Gender | Boys | 22 | 66.6 | .362 |
| Girls | 13 | 83.1 | ||
| WBC | < 100 000/μL | 23 | 72.0 | .843 |
| ≥ 100 000/μL | 12 | 74.1 | ||
| WBC | < 200 000/μL | 28 | 70.1 | .382 |
| ≥ 200 000/μL | 7 | 83.3 | ||
| FAB subtype | M4/M5 | 23 | 80.8 | .105 |
| non-M4/M5 | 12 | 56.1 | ||
| MLLrearrangements | Positive | 17 | 74.1 | .961 |
| Negative | 18 | 73.4 |