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Cox regression model for disease-free survival. The model includes the most contributive clinicopathological variables (see Appendix Table A1) and the binarized E/M score.
| Risk Factor | Beta | SE 1 | HR 2 | 95% | CI 3 | p-Value |
|---|---|---|---|---|---|---|
| N+ | 1.4961 | 0.3969 | 4.4640 | 2.0544 | 9.7000 | 0.0002 |
| CIS (yes) | 0.9147 | 0.3570 | 2.4960 | 1.2398 | 5.0249 | 0.0104 |
| Advanced E/M > 0.01 | 1.0993 | 0.3747 | 3.0019 | 1.4402 | 6.2572 | 0.0034 |
1 Standard error; 2 hazard ratio; 3 95% confidence interval for HR.
