Full model | Reduced model | |||||
---|---|---|---|---|---|---|
Covariate | HR | 95% CI | P-value | HR | 95% CI | P-value |
Age (70:45) | 1.66 | 1.16-2.38 | 0.004* | 1.70 | 1.19-2.45 | 0.002* |
Sex | ||||||
Male | 1 | - | ||||
Female | 1.37 | 0.89-2.11 | 0.15 | - | - | - |
Race | ||||||
White | 1 | - | ||||
Non White | 0.80 | 0.47-1.38 | 0.42 | - | - | - |
Year of diagnosis (2000:1990) | 0.80 | 0.61-1.05 | 0.11 | - | - | - |
Stage | ||||||
Localized | 1 | 1 | ||||
Regional | 2.93 | 1.43-6.00 | 0.003* | 2.93 | 1.43-5.99 | 0.003* |
Distant | 4.88 | 2.20-10.82 | <0.001* | 4.82 | 2.17-10.69 | <0.001* |
Radiation | ||||||
No | 1 | 1 | ||||
Yes | 1.84 | 1.07-3.15 | 0.03* | 2.14 | 1.28-3.58 | 0.004* |
Histological types# | - | - | 0.003* | - | - | 0.004* |
Surgery# | - | - | 0.06 | - | - | 0.05 |
Histology × surgery | - | - | 0.03* | - | - | 0.02* |
Surgery | ||||||
Squamous cell carcinoma | 1 | 1 | ||||
Adenocarcinoma | 0.16 | 0.06-0.46 | <0.001* | 0.18 | 0.06-0.50 | 0.001* |
Others | 0.55 | 0.27-1.12 | 0.10 | 0.60 | 0.30-1.19 | 0.15 |
No surgery | ||||||
Squamous cell carcinoma | 1 | 1 | ||||
Adenocarcinoma | 1.95 | 0.40-9.51 | 0.41 | 2.33 | 0.47-11.68 | 0.30 |
Others | 0.51 | 0.19-1.39 | 0.19 | 0.54 | 0.20-1.46 | 0.22 |