Variables | Regression coefficient β | Standard error | P value | Relative risk | 95% CI |
---|---|---|---|---|---|
T stage | 0.693 | 0.273 | 0.011 | 1.999 | 1.170–3.414 |
Lymph node involvement | 1.520 | 0.424 | <0.001 | 4.574 | 1.993–10.497 |
Histological grade | 0.793 | 0.257 | 0.002 | 2.210 | 1.336–3.658 |
Perineural invasion | 1.286 | 0.494 | 0.009 | 3.620 | 1.375–9.529 |