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Table 1 Clinical and biological Features of Neuroblastoma Patients.

From: c.1810C>T Polymorphism of NTRK1Gene is associated with reduced Survival in Neuroblastoma Patients

FACTOR Dichotomous covariate PL IT TOTAL
AGE ≤ 18 months of age 21 (38%) 76 (67%) 97 (57%)
  >18 months of age 34 (62%) 38 (33%) 72 (43%)
STAGE 1, 2, 3, 4S 28 (51%) 88 (77%) 116 (69%)
  4 27 (49%) 26 (23%) 53 (31%)
Histological subtype (INPC) FH 17 (31%) 20 (18%) 37 (22%)
  UH 37 (67%) 88 (77%) 125 (74%)
  unknown 1 (2%) 6 (5%) 7 (4%)
MYCN non-amplified 29 (53%) 92 (81%) 121 (72%)
  amplified 20 (36%) 22 (19%) 42 (25%)
  unknown 6 (11%) 0 6 (3%)
1 p del/imbalance 1 p normal 14 (25%) 52 (46%) 66 (39%)
  1 p deletion/imbalance 22 (40%) 38 (33%) 60 (36%)
  unknown 19 (35%) 24 (21%) 43 (25%)
  1. Abbreviations: PL - Polish, IT - Italian group of patients; FH - favorable, UH - unfavorable histology: in accordance to International Neuroblastoma Pathology Classification (INPC)