| Nomogram score | 8th AJCC stage |
---|---|---|
Training Cohort | ||
 OS | 0.712 (0.683–0.741) | 0.567 (0.563–0.571) |
 CSS | 0.709 (0.691–0.727) | 0.611 (0.593–0.629) |
Validation Cohort | ||
 OS | 0.697 (0.664–0.73) | 0.582 (0.549–0.615) |
 CSS | 0.675 (0.651–0.699) | 0.598 (0.574–0.622) |