Table 1.
Basic clinical characteristics of the study population
| B-ALL | T-ALL | Control | |
|---|---|---|---|
| No. of cases | 44 | 44 | 44 |
| Gender | |||
| Male | 24 | 31 | 22 |
| Female | 20 | 13 | 22 |
| Median age, years (range) | 4(2months-10) | 8(25days-14) | 7(1year-14) |
| FAB Classification | |||
| L1 | 35 | 30 | - |
| L2 | 9 | 14 | - |
| Immunophenotype | Early pre-B ALL(6) Pre-B ALL(13) common ALL(25) |
T-ALL | - |
| Karyotype | |||
| abnormal karyotype | 14 | 16 | - |
| normal karyotype | 30 | 28 | - |
| WBC count | |||
| ＜30×109/l | 33(75%) | - | - |
| ≥30×109/l | 11(25%) | - | - |
| ＜100×109/l | - | 24(55%) | - |
| ≥100×109/l | - | 20(45%) | - |
Abbreviations: ALL, acute lymphoblastic leukemia; WBC, white blood cell.