Table 2

- Distribution of hematological malignancies (HMs) cases according to subtypes and age. Early childhood (≤5 years old), Middle childhood (6–12 years old), and late childhood (13–16 years old).

HMs subtypesEarly childhoodMiddle childhoodLate childhood
B-ALL81 (66.9)35 (28.9)5 (4.2)
AML-M410 (66.6)4 (26.7)1 (6.7)
T-ALL4 (50.0)3 (37.5)1 (12.5)
AML-M33 (50.0)3 (50.0)0 (0)
AML-M53 (75.0)0 (0)1 (25.0)
MPAL1 (25.0)2 (50.0)1 (25.0)
JMML3 (100)0 (0)0 (0)
MDS2 (66.6)1 (33.3)0 (0)
AML-M21 (50.0)1 (50)0 (0)
AML-M61 (50.0)1 (50)0 (0)
Burkitt’s lymphoma1 (50.0)1 (50)0 (0)
Prolymphocytic leukemia1 (100)0 (0)0 (0)
Total111 (65.1)51 (29.8)9 (5.3)
Values are presented as number and percentages (%). HMs: hematological malignancies, B-ALL: B-cell acute lymphoblastic leukemia, AML-M4: myelomonocytic leukemia, T-ALL: T-cell acute lymphoblastic leukemia, AML-M3: Acute promyelocytic leukemia, AML-M5: acute monoblastic leukemia, MPAL: Mixed-phenotype acute leukemia, JMML: juvenile myelo-monocytic leukemia, MDS: myelodysplastic syndrome, AML-M2: acute myeloid leukemia with maturation, AML-M6: acute erythroid leukemia