marginally significantp=0.049
We found that stage of disease remained significant for PFS (hazard ratio [HR] of advanced stage, 3.83; 95% CI, 1.73 to 8.48; p=0.001) and OS (HR, 2.83; 95% CI, 1.16 to 6.88; p=0.022) while the surgical outcome was marginally significant for OS (HR of optimal surgery, 2.17; 95% CI, 1.00 to 4.69; p=0.049).