Table 1.
Patient characteristics | Number (%) |
---|---|
Age, years (median, range) | 5.1 (1 month - 15 years) |
Male | 151 (56.6) |
Chemotherapy | |
Induction for leukemia | 75 (27.5) |
Other chemotherapy | 192 (72.5) |
Underlying diseases | |
Hematologic malignancy | 191 (71.5) |
Acute lymphoblastic leukemia | 114 (42.7) |
Acute myeloid leukemia | 44 (16.5) |
Lymphoma | 20 (7.5) |
Other* | 13 (4.8) |
Solid tumor | 76 (28.5) |
Brain tumor | 23 (8.6) |
Neuroblastoma | 17 (6.4) |
Rhabdomyosarcoma | 7 (2.6) |
Osteosarcoma | 5 (1.9) |
Hepatoblastoma | 4 (1.5) |
Ewing sarcoma | 4 (1.5) |
Retinoblastoma | 4 (1.5) |
Other** | 12 (4.5) |
* Hemophagocytic lymphohistiocytosis, Langerhans cell histiocytosis, Chronic myeloid leukemia, Juvenile myelomonocytic leukemia; **, Wilms’ tumor, Primitive neuroectodermal tumor, Extrarenal rhabdoid tumor, Small cell lung cancer, Soft tissue sarcoma, Atypical teratoid rhabdoid tumor, Yolk sac tumor, Mix germ cell tumor