Patients characteristics
One hundred patients were included in this study; median age at
diagnosis was 9.2-years (range, 0.5-17.8 year); 76% were males; 30
patients (30%) presented with initial WBC count ≥200 ×
109/L; the majority of the patients (76%) had high
risk disease per NCI classification. CNS involvement was documented in
15 patients (15%). There were no significant differences in the
distributions of age, sex, leukocyte count, CNS status at diagnosis and
NCI risk between the 2 groups (Table 1).