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The Cox regression model illustrates the independent predictor(s) of OS
| Variables | B | SE | Wald | df | Sig | Exp(B) |
|---|---|---|---|---|---|---|
| Recurrence | .160 | .680 | .055 | 1 | .814 | 1.174 |
| Metastasis | .155 | .750 | .043 | 1 | .836 | 1.168 |
| Tumor size | -.005 | .410 | .000 | 1 | .991 | .995 |
| Nodal involvement | .036 | .366 | .010 | 1 | .921 | 1.037 |
