Table 2 Multivariate cox regression analysis of overall survival (OS) rate and local control (LC) rate of the patients
Factors | OS rate | LC rate | ||
|---|---|---|---|---|
HR (95 % CI) | P value | HR (95 % CI) | P value | |
Tumor length (≤5 cm vs >5 cm) | 0.81 (0.68–0.96) | 0.014 | 0.73 (0.58–0.92) | 0.007 |
T stage (T1 + T2 vs T3 + T4) | 0.84 (0.63–1.13) | 0.257 | 0.85 (0.58–1.24) | 0.398 |
N stage (N0 vs N1) | 0.89 (0.73–1.09) | 0.260 | 0.90 (0.68–1.18) | 0.432 |
AJCC Stage (I + II vs III) | 0.62 (0.52–0.74) | <0.0001 | 0.66 (0.52–0.84) | 0.001 |
Treatment modality (3D–CRT vs NBT + EBRT) | 1.27 (1.07–1.20) | 0.005 | 1.26 (1.01–1.58) | 0.043 |