Stage
 
OS (%)
 
EFS (%)
 
Test for differences in survival distributions (p-value)
 
 
Cox Regression (Multivariate analysis)
 
 
 
 
OS
EFS
 
I
96.0
94.1
 
p<0.001
 
p<0.001
 
II
94.3
85
p=0.7195
III
75.5
69.8
p=0.0171
IV
60.1
55.2
p<0.001