Table 2. Univariate and multivariate Cox regression analyses for overall survival.

Variables	Univariate analysis		Multivariate analysis
	H.R.(95% CI)	P	H.R.(95% CI)	P
Age	1.00(0.99-1.01)	0.544
Gender	1.73(0.75-3.95)	0.197
T classification	3.53(1.77-7.01)	<0.001	2.28(1.06-4.91)	0.034
N classification	2.47(1.27-4.81)	0.008	1.95(0.95-4.04)	0.069
Distant metastasis	2.22(1.10-4.49)	0.026	1.24(0.56-2.74)	0.592
Differentiation	1.84(1.17-2.90)	0.009	1.17(0.71-1.94)	0.547
STMN1 expression	1.21(1.11-1.32)	<0.001	1.11(1.01-1.20)	0.028
Adjuvant chemotherapy	0.33(0.16-0.72)	0.005	0.43(0.19-0.94)	0.034