Table 1 Patient characteristics

From: Integrated stem cell signature and cytomolecular risk determination in pediatric acute myeloid leukemia

Characteristic

Training cohort (n = 753)

Validation cohort (n = 750)

P-value*

Sex

 Female

359 (47.7)

370 (49.3)

0.520

 Male

394 (52.3)

380 (50.7)

 

Age

 <3 years

175 (23.2)

174 (23.2)

0.985

 3–5 years

60 (8.0)

63 (8.4)

0.760

 5–10 years

134 (17.8)

145 (19.3)

0.443

 10–18 years

323 (42.9)

318 (42.4)

0.846

 >18 years

61 (8.1)

50 (6.7)

0.288

WBC Count

 <100,000/µL

594 (79.0)

586 (78.1)

0.686

 ≥100,000/µL

158 (21.0)

164 (21.9)

 

 Unknown

1

0

 

Cytomolecular risk group

 Low

291 (38.6)

289 (38.5)

0.964

 Standard

212 (28.2)

197 (26.3)

0.411

 High

250 (33.2)

264 (35.2)

0.414

MRD at end of induction I

 No

462 (68.8)

468 (69.0)

0.796

 Yes

210 (31.3)

210 (31.0)

 

 Unknown

81

72

 

SCT in CR1

 No

650 (86.3)

659 (87.9)

0.372

 Yes

103 (13.7)

91 (12.1)

 

CEBPA mutation

 No

713 (94.7)

707 (94.3)

0.721

 Yes

40 (5.3)

43 (5.7)

 

FLT3-ITD mutation

 No

609 (80.9)

602 (80.3)

0.765

 <0.1

26 (3.5)

28 (3.7)

0.770

 ≥0.1

118 (15.7)

120 (16.0)

0.861

Fusion category

 RUNX1-RUNX1T1

101 (13.4)

101 (13.5)

0.976

 CBFB-MYH11

82 (10.9)

82 (10.9)

0.978

 KMT2A

158 (21.0)

157 (20.9)

0.981

 NUP98

60 (8.0)

59 (7.9)

0.942

 CBFA2T3-GLIS2

14 (1.9)

13 (1.7)

0.854

 Other or no fusion

338 (44.9)

338 (45.1)

0.944

  1. Demographic and molecular characteristics of our study cohort. Abbreviations include WBC white blood cells, CNS central nervous system, MRD minimal residual disease, SCT stem cell transplant, CR1 first complete remission, ITD internal tandem duplication, KD kinase domain. P-values were based on the chi-squared test.