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["Table 1 Characteristics of NB patients with high risk"]
["Characteristics","Total cases, N (%) "]
["Age (months)"]
["<18","7 (6.0)"]
["≥18 and <60","80 (69.0)"]
["≥60","29 (25.0)"]
["Sex"]
["Female ","56 (48.3)"]
["Male","60 (51.7)"]
["Primary site"]
["Abdomen","93 (80.2)"]
["Thorax","20 (17.2)"]
["Other","3 (2.6)"]
["MYCN gene"]
["Amplification","38 (32.8)"]
["Non-amplification","78 (67.2)"]
["NSE (ng/ml)"]
["<370","88 (75.9)"]
["≥370","28 (24.1)"]
["LDH (IU/L)"]
["≤500","14 (12.1)"]
[">500 and <1500","88 (75.9)"]
["≥1500","14 (12.1)"]
["Metastatic site"]
["Bone","84 (72.4)"]
["Bone marrow","72 (62.1)"]
["Distant lymph node","76 (65.5)"]
["Liver","20 (17.2)"]
["Central nervous system","20 (17.2)"]
["Number of organs with metastasis"]
["<3","59 (50.9)"]
[3,"39 (33.6)"]
[">3","18 (15.5)"]

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