Table 3. Multiple regression Cox analysis for the factors influencing overall, cancer-specific and disease-free interval.
| Variable | Category | Overall survival | Cancer-specific survival | Disease-free interval | |||
|---|---|---|---|---|---|---|---|
| HR (95% CI) | p Value | HR (95% CI) | p Value | HR (95% CI) | p Value | ||
| Pathological Stage | I+II/ III+IV | 2.14 (1.60 – 2.87) | <0.001 | 2.72 (1.81 – 4.09) | <0.001 | 1.64 (1.22 – 2.21) | <0.001 |
| Perineural invasion | Yes/ No | 1.47 (1.08 – 1.99) | 0.01 | 1.57 (1.06 – 2.31) | 0.02 | 1.58 (1.15 – 2.16) | 0.004 |
| Grading system | Well+ Moderately/ Poorly | a | a | 2.0 (1.07 – 3.73) | 0.03 | a | a |
a
Variable not included in the analysis