Table 1 Patient characteristics of the study population

Age

(Min-Max (Median))

1.7-17.4 (9.8) years

Sex

Male (n (%))

86 (80.3)

Female (n (%))

21 (19.7)

Histopathological subgroups

Burkitt lymphoma (n (%))

80 (74.8)

Diffuse large B-cell lymphoma (n (%))

5 (4.6)

Anaplastic large cell lymphoma (n (%))

3 (2.8)

Lymphoblastic lymphoma (n (%))

19 (17.8)

Stage

Stage 1 (n (%))

1 (0.9)

Stage 2 (n (%))

24 (22.4)

Stage 3 (n (%))

60 (56.1)

Stage 4 (n (%))

22 (20.6)

Bone marrow involvement

Yes (n (%))

12 (11.2)

No (n (%))

95 (88.8)

Renal involvement

Yes (n (%))

11 (10.3)

No (n (%))

96 (89.7)

Lactate dehydrogenase level

<500 U/L (n (%))

40 (37.4)

500-1000 U/L (n (%))

25 (23.4)

>1000 U/L (n (%))

42 (39.2)

Lactate dehydrogenase

(Min-Max (Median))

71-9840 (628) U/L

(Mean±SD)

1037.82±1171.84 U/L

Creatinine

(Min-Max (Median))

0.1-1.17 (0.5) mg/dL

(Mean±SD)

0.51±0,22 mg/dL

Urea

(Min-Max (Median))

3-56 (20) mg/dL

(Mean±SD)

21.60±10.35 mg/dL

Estimated glomeruler filtration rate mL/minute/1.73m²

>90 mL/minute/1.73m² (n (%))

107 (100)

<90 mL/minute/1.73m² (n (%))

0 (0)