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Cox proportional hazards model for prognostic factors
| Variables | Hazard ratio | 95% CI | P value | |
|---|---|---|---|---|
| Lower | Upper | |||
| Age <60 years | 0.380 | 0.330 | 0.440 | >0.001 |
| radiation sequence with surgery | 1.226 | .966 | 1.557 | .094 |
| Radiation | 0.597 | 0.522 | 0.684 | >0.001 |
| Surgery | 0.746 | 0.693 | 0.802 | >0.001 |
