Table 3.
Multivariate Analysis for Overall Survival and Progression-Free Survival
| Variables | Progression-Free Survival | Overall Survival | ||||
|---|---|---|---|---|---|---|
| HR | 95% CI | P-value | HR | 95% CI | P-value | |
| Age | 0.511 | 0.242–1.081 | 0.079 | 0.425 | 0.200–0.900 | 0.025 |
| ≤60 | ||||||
| >60 | ||||||
| Lymph node positive rate | 0.535 | 0.169–1.698 | 0.288 | 0.397 | 0.134–1.172 | 0.094 |
| <0.25 | ||||||
| ≥0.25 | ||||||
| Chemotherapy regimen | 0.502 | 0.224–1.124 | 0.094 | 0.945 | 0.384–2.329 | 0.903 |
| Group 1 | ||||||
| Group 2 | ||||||
| Immediate radiotherapy | 0.595 | 0.225–1.572 | 0.295 | 0.953 | 0.297–3.059 | 0.936 |
| Yes | ||||||
| No | ||||||
| Radiotherapy dose | 15.985 | 3.546–72.049 | 0.000 | 2.864 | 1.000–8.202 | 0.050 |
| <54Gy | ||||||
| ≥54Gy | ||||||
Abbreviations: HR, hazard radio; CI, confidence interval.