Table 2. Multivariate survival analysis of five-year overall and relapse-free survival in 120 patients with colon cancer.

variable	Overall survival			Relapse-free survival
	Hazard Ratio	95% confidence interval	P	Hazard Ratio	95% confidence interval	P
Age	1.045	0.636–1.718	0.861	0.913	0.344–2.154	0.748
Gendar	1.339	0.528–2.395	0.538	1.288	0.783–2.117	0.319
Tumor size	2.246	0.900–5.605	0.083	2.333	0.974–5.589	0.057
Depth of invasion	3.415	1.330–8.772	0.011	3.513	1.428–8.643	0.006
Tumor differentiation	2.07	0.741–5.785	0.165	1.707	0.627–4.644	0.295
Lymph node invasion	1.962	1.140–3.374	0.015	2.025	1.181–3.472	0.010
TNM stage	1.525	1.010–2.543	0.036	2.013	1.117–3.749	0.026
Metastasis	3.533	2.181–5.774	0.000	2.901	1.815–4.830	0.000
MiR-506	0.328	0.171–0.632	0.001	0.444	0.238–0.830	0.011