Table 3.

Cox multivariate proportional hazards of independent predictors on DFS and OS.

Variable	HR	95% CI	P Value
OS
NLR (≤2.9 vs.>2.9)	3.138	2.234-4.410	0.000
Incisal margin (R0 vs.R1)	2.417	1.314-4.444	0.005
Lymphatic metastasis (yes vs.no)	2.019	1.427-2.858	0.000
Age,years (≤55 vs.>55)	1.611	1.089-2.385	0.017
TNM stage (I-II vs.III-IV)	1.506	1.087-2.087	0.014
Tumor size,cm (≤4 vs.>4)	1.441	1.025-2.026	0.035
DFS
NLR (≤2.9 vs.>2.9)	2.970	2.121-4.158	0.000
Incisal margin (R0 vs.R1)	2.232	1.216-4.095	0.010
Lymphatic metastasis (yes vs.no)	2.072	1.463-2933	0.000
Age,years (≤55 vs.>55)	1.598	1.080-2.363	0.019
TNM stage (I-II vs.III-IV)	1.443	1.045-1.994	0.026
Tumor size,cm (≤4 vs.>4)	1.438	1.024-2.019	0.036

NLR, Neutrophil To Lymphocyte Ratio.