Table 1.
T-ALL (n=34) | B-ALL (n=44) | p | |
---|---|---|---|
Age, median(range), years | 36(6–72) | 47(4–85) | |
Gender, male/female | 26/8 | 24/20 | |
Lymphoblasts, median (range)(%) | |||
• By morphology | 61(3–97) | 86(2–99) | |
• By flow cytometry | 52(2–98) | 52(2–92) | |
CD30 expression in all cases, | |||
median (range)(%) | 3.3 (0.1–86.8) | 2.6 (0.0–68.8) | NS |
Patients with ≥20%CD30 expression | 13 (38%) | 6 (14%) | 0.017 |
• CD30+ blasts %, median (range) | 40.0(22.7–86.8) | 39.1(24.9–68.8) | NS |
• MFI ratio | 3.3 (1.8–37.9) | 4.9 (3.0–8.8) | NS |
CD30 expression by a 20% cutoff according to disease status and cytogenetics | |||
Untreated patients | 0/3 (0%) | 1/12 (8%) | * NS |
Relapsed/persistent patient | 13/31(42%) | 5/32 (16%) | |
Patients with a normal karyotype | 4/15 (27%) | 2/13 (15%) | * NS |
Patients with an abnormal karyotype | 9/19 (47%) | 4/31(13%) | |
Patients with BCR-ABL1 | 1/2 (50%) | 3/14 (21%) | * NS |
Patients without BCR-ABL1 | 12/32 (38%) | 3/30 (10%) |
ALL: acute lymphoblastic leukemia. MFI: Mean fluorescence intensity;
NS: not significant. Comparisons were performed between B-ALL and T-ALL; within B-ALL and T-ALL subgroups; or combining B-ALL and T-ALL by disease status and cytogenetic data, calculated by the expression percentage or number of positive cases.