Figure A2.

The cut-off value for recurrence-free survival of (a) systematic oxidative stress score (≤15.1 was the low-level group, >15.1 was the high-level group), and (b) the risk points counted by X-tile based on the nomogram (p ≤ 103.0 was the low-risk group, >103.0 was the high-risk group). The blue color represents the samples of the low-level group and their survival, respectively. And the grey color represents the samples of the high-level group and their survival, respectively.