Frequency (%) of Presenting Features and Outcome in Infants With ALL According to Prednisone Response (n = 105)
| Feature . | PGR (n = 78) . | PPR (n = 27) . | P Value . | ||
|---|---|---|---|---|---|
| % . | pEFS ± SE (%) . | % . | pEFS ± SE (%) . | ||
| Sex | |||||
| Female | 53 | 54 ± 13 | 48 | 23 ± 12 | .008 |
| Male | 47 | 52 ± 9 | 52 | 7 ± 7 | .0003 |
| Age (mo) | |||||
| <6 | 51 | 44 ± 8 | 52 | 0 ± 0 | .0001 |
| ≥6 ≤ 12 | 49 | 64 ± 8 | 48 | 31 ± 13 | .01 |
| WBC (×103/μL) | |||||
| <100 | 51 | 54 ± 9 | 22 | 33 ± 19 | .24 |
| ≥100 | 49 | 52 ± 8 | 78 | 10 ± 6 | .0002 |
| CNS disease | |||||
| Present | 22 | 28 ± 11 | 30 | 0 ± 0 | .17 |
| Absent | 78 | 60 ± 7 | 70 | 22 ± 10 | .0002 |
| Immunophenotype* | |||||
| CD10 | |||||
| Negative | 57 | 49 ± 8 | 63 | 0 ± 0 | .0001 |
| Positive | 43 | 59 ± 9 | 37 | 40 ± 15 | .14 |
| Myeloid marker | |||||
| Present | 28 | 45 ± 12 | 30 | 25 ± 15 | .16 |
| Absent | 72 | 57 ± 7 | 70 | 11 ± 7 | .0001 |
| Cytogenetics† | |||||
| Normal (n) | 42 (16) | 60 ± 13 | 10 (2) | 0 ± 0 | .02 |
| 11q23 rearranged (n) | 45 (17) | 41 ± 12 | 55 (11) | 9 ± 9 | .03 |
| t(4;11) (n)‡ | (9) | 33 ± 16 | (7) | 0 ± 0 | .06 |
| Other aberrations (n) | 13 (5) | 100 ± 0 | 35 (7) | 40 ± 22 | .22 |
| Feature . | PGR (n = 78) . | PPR (n = 27) . | P Value . | ||
|---|---|---|---|---|---|
| % . | pEFS ± SE (%) . | % . | pEFS ± SE (%) . | ||
| Sex | |||||
| Female | 53 | 54 ± 13 | 48 | 23 ± 12 | .008 |
| Male | 47 | 52 ± 9 | 52 | 7 ± 7 | .0003 |
| Age (mo) | |||||
| <6 | 51 | 44 ± 8 | 52 | 0 ± 0 | .0001 |
| ≥6 ≤ 12 | 49 | 64 ± 8 | 48 | 31 ± 13 | .01 |
| WBC (×103/μL) | |||||
| <100 | 51 | 54 ± 9 | 22 | 33 ± 19 | .24 |
| ≥100 | 49 | 52 ± 8 | 78 | 10 ± 6 | .0002 |
| CNS disease | |||||
| Present | 22 | 28 ± 11 | 30 | 0 ± 0 | .17 |
| Absent | 78 | 60 ± 7 | 70 | 22 ± 10 | .0002 |
| Immunophenotype* | |||||
| CD10 | |||||
| Negative | 57 | 49 ± 8 | 63 | 0 ± 0 | .0001 |
| Positive | 43 | 59 ± 9 | 37 | 40 ± 15 | .14 |
| Myeloid marker | |||||
| Present | 28 | 45 ± 12 | 30 | 25 ± 15 | .16 |
| Absent | 72 | 57 ± 7 | 70 | 11 ± 7 | .0001 |
| Cytogenetics† | |||||
| Normal (n) | 42 (16) | 60 ± 13 | 10 (2) | 0 ± 0 | .02 |
| 11q23 rearranged (n) | 45 (17) | 41 ± 12 | 55 (11) | 9 ± 9 | .03 |
| t(4;11) (n)‡ | (9) | 33 ± 16 | (7) | 0 ± 0 | .06 |
| Other aberrations (n) | 13 (5) | 100 ± 0 | 35 (7) | 40 ± 22 | .22 |