Table 1

Patient demographics and statistical analysis comparing Id2 status to clinical features

Total n(%)Id2aPb
Positive n (%)Negative n (%)
Age
 <1 year14 (29.8)9 (19)5 (10)
 >1 year33 (70.2)20 (43)13 (28)0.8
Stage
 Favorable17 (36.2)6 (13)11 (23)
 Unfavorable30 (63.8)23 (49)7 (15)0.0051
N-myc gene
 <3 copies37 (78.7)20 (43)17 (36)
 >3 copies8 (17.8)8 (17)0 (0)0.015
 Unknown2 (4.2)1 (2)1 (2)
Events
 No event30 (63.8)14 (30)16 (34)
 Event17 (36.2)15 (32)2 (4)0.0048
  • a Id2 positive samples contained ≥25% tumor cells that stained for Id2. Id2 negative samples did not contain tumor cells with Id2 staining. No tumor showed Id2 positivity >0% but <25%.

  • b χ2 P.