Table 3.

Multivariate survival analysis for various potential prognostic factors of overall survival

Variables	HR	95% CI	P-value
Histology	0.660	0.441–0.989	0.044
Tumor stage	1.729	1.365–2.189	<0.001
Tumor location	1.347	0.846–2.142	0.209
Nodal metastasis	1.619	0.926–2.832	0.091
TNM stage	1.642	1.071–2.518	0.023
Adjuvant therapy	0.611	0.405–0.920	0.018
NLR	1.803	1.203–2.702	0.004

Abbreviations: CI, confidence interval; HR, hazard ratio; NLR, neutrophil/lymphocyte ratio.