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Table 3 Relationship of MYCN status to the clinicobiological characteristics of BM metastatic NB (n = 81)

From: MYCN amplification predicts poor prognosis based on interphase fluorescence in situ hybridization analysis of bone marrow cells in bone marrow metastases of neuroblastoma

Characteristics

Total n (%)

MYCN-amplification n (%)

MYCN-normal n (%)

P values*

Gender

 Male

51 (63.0)

7 (53.8)

44 (64.7)

0.536

 Female

30 (37.0)

6 (46.2)

24 (35.3)

 

Age (months)

 <12

3 (3.7)

0 (0)

3 (4.4)

0.038

 12–18

4 (4.9)

2 (15.4)

2 (2.9)

 

 18–24

11 (13.6)

4 (30.8)

7 (10.3)

 

 >24

63 (77.8)

7 (53.8)

56 (82.4)

 

Treatment group

 LR

3 (3.7)

0 (0)

3 (4.4)

0.999

 IR

3 (3.7)

0 (0)

3 (4.4)

 

 HR

75 (92.6)

13 (100)

62 (91.2)

 

LDH (IU/L)

 <1500

55 (67.9)

3 (23.1)

52 (76.5)

<0.001

 ≥1500

26 (31.1)

10 (76.9)

16 (23.5)

 

NSE (UG/L)

 <100

10 (12.3)

0 (0)

10 (14.7)

0.352

 ≥100

71 (87.7)

13 (100)

58 (85.3)

 

Primary site

 Abdomen

73 (90.1)

12 (92.3)

61 (89.7)

0.999

 Thorax

6 (7.4)

1 (7.7)

5 (7.4)

 

 Others

2 (2.5)

0 (0)

2 (2.9)

 

Event

 No event

54 (66.7)

5 (38.5)

49 (72.1)

0.026

 Event

27 (33.3)

8 (61.5)

19 (27.9)

 
  1. NB neuroblastoma, BM bone marrow, LR low-risk, IR intermediate-risk, HR high-risk, LDH lactate dehydrogenase, NSE neuron specific enolase
  2. * Data were calculated by χ2 test