Factor | Model parameters | Standard error | Parametric test statistic | Degree of freedom | P value | Degree of risk | 95% CI | |
---|---|---|---|---|---|---|---|---|
 |  |  |  |  |  |  | Upper limit | Lower limit |
Lymph node (positive or negative) | 2.684 | 1.075 | 6.233 | 1 | 0.013 | 14.649 | 1.781 | 120.520 |
Postoperative radiotherapy | −0.717 | 0.597 | 1.440 | 1 | 0.230 | 0.488 | 0.151 | 1.575 |
Postoperative chemotherapy | −1.379 | 0.624 | 4.884 | 1 | 0.027 | 0.252 | 0.074 | 0.856 |
Histological grade | −0.913 | 0.790 | 1.335 | 1 | 0.248 | 0.401 | 0.085 | 1.889 |
Clinical stage | 0.265 | 0.842 | 0.099 | 1 | 0.753 | 1.303 | 0.250 | 6.787 |