Table 3.
Cox proportional hazard model for survival analysis
| Variables | Disease-free survival | Overall survival | ||||||
|---|---|---|---|---|---|---|---|---|
| P value | 95.0% CI | P value | 95.0% CI | |||||
| RR | Lower | Upper | RR | Lower | Upper | |||
| Age | 0.18 | 25.40 | 0.23 | 2,795.04 | 0.08 | 0.05 | 0.00 | 1.48 |
| Gender | 0.20 | 92.77 | 0.09 | 980.04 | 0.94 | 0.79 | 0.00 | 335.79 |
| Smoking | 0.15 | 176.14 | 0.15 | 2,029.48 | 0.23 | 0.05 | 0.00 | 6.05 |
| Alcohol | 0.71 | 0.35 | 0.00 | 94.95 | 0.06 | 88.01 | 0.80 | 9,720.55 |
| T stage | 0.17 | 0.00 | 0.00 | 31.01 | 0.29 | 19.71 | 0.08 | 4,829.85 |
| N stage | 0.15 | 2,148.01 | 0.06 | 7,502.41 | 0.41 | 3.31 | 0.20 | 55.38 |
| TNM stage | 0.26 | 0.04 | 0.00 | 11.60 | 0.66 | 6.42 | 0.00 | 23,596.23 |
| Cancer history | 0.12 | 0.00 | 0.00 | 4.26 | 0.28 | 0.03 | 0.00 | 15.88 |
| Family cancer history | 0.16 | 0.00 | 0.00 | 23.41 | 0.29 | 4.77 | 0.26 | 87.55 |
| Differentiation | 0.98 | 1.04 | 0.04 | 27.08 | 0.01 | 3,200.11 | 11.35 | 9,147.52 |
| RT | 0.98 | 0.95 | 0.05 | 19.86 | 0.01 | 281.90 | 4.55 | 17,458.53 |
| CT | 0.15 | 357.78 | 0.12 | 1,051.25 | 0.07 | 0.02 | 0.00 | 1.33 |
| D14S67 | 0.13 | 174.08 | 0.20 | 1,482.85 | 0.24 | 0.09 | 0.00 | 4.95 |
| D14S995 | 0.01 | 117.71 | 3.20 | 4,336.75 | 0.03 | 695.43 | 1.87 | 2,216.98 |
P value with bold indicators shows statistically significant value
95.0% CI confidence interval, RR risk ratio