Table 2. Cox proportional hazard regression analyses for overall survival.

Clinicopathological Features	Univariate Analysis		Multivariate Analysis
	HR(95%Cl)	P	HR (95%Cl)	P
miR-9 UPregulation	1.913(1.391–2.632)	<0.001*	1.543 (1.112–2.140)	0.009*
Gender	0.785(0.568–1.085)	0.142
Age	1.216(0.886–1.669)	0.225
Differentiation	1.574(1.192–2.079)	<0.001*	1.465(1.114–1.928)	0.006*
Tumor invasion	1.481(1.197–1.831)	<0.001*	1.267(1.012–1.586)	0.039*
Clinical stage	2.483(1.802–3.420)	<0.001*	1.545 (0.799–2.990)	0.196
LN metastasis	2.138(1.556–2.938)	<0.001*	1.218 (0.654–2.268)	0.534

CI = confidence interval; HR = hazard ratio;

^*Statistical significance (p < 0.05) is shown in bold.