Variable | HR | 95 % CI | P value | (C-index) (%) |
---|---|---|---|---|
Age | 1.007 | 0.998–1.015 | 0.118 | 52.2 |
Sex | 51.6 | |||
Male (reference) | 1 | |||
Female | 0.766 | 0.608–0.966 | 0.025 | |
Tumor location | 53.2 | |||
Upper (reference) | 1 | |||
Middle | 1.318 | 0.758–2.292 | 0.328 | |
Lower | 1.534 | 0.882–2.666 | 0.129 | |
Differentiation | 55.4 | |||
G1 (reference) | 1 | |||
G2 | 2.094 | 1.622–2.703 | <0.001 | |
G3 | 1.442 | 1.154–1.802 | <0.001 | |
T stage | 60.5 | |||
T1 (reference) | 1 | |||
T2 | 2.253 | 1.572–3.230 | <0.001 | |
T3 | 3.499 | 2.545–4.809 | <0.001 | |
T4 | 5.593 | 3.835–8.156 | <0.001 | |
N stage | 67.1 | |||
N0 (reference) | 1 | |||
N1 | 2.001 | 1.661–2.409 | <0.001 | |
N2 | 3.640 | 3.007–4.406 | <0.001 | |
N3 | 6.180 | 4.882–7.823 | <0.001 | |
Vascular invasion | 51.5 | |||
No (reference) | 1 | |||
Yes | 1.224 | 1.001–1.482 | 0.038 | |
Perineural involvement | 53.8 | |||
No (reference) | 1 | |||
Yes | 1.595 | 1.345–1.891 | <0.001 | |
Number of resected lymph nodes | 1.002 | 0.995–1.008 | 0.577 | 50.3 |
Tumor length | 56.1 | |||
≤ 4.0 cm (reference) | 1 | |||
> 4.0 cm | 1.582 | 1.368–1.830 | <0.001 | |
Tumor length* | 1.121 | 1.088–1.155 | <0.001 | 58.1 |