Table III.

Cox proportional hazard regression.

	Univariate analysis		Multivariate analysis
Variable	HR (95% CI)	P-value	HR (95% CI)	P-value
Age (≥50 vs. <50 years)	2.146 (0.921–5.002)	0.0785
Sex (male vs. female)	0.183 (0.025–1.344)	0.0967
Metastasis (yes vs. no)	13.343 (5.138–34.648)	<0.001	12.140 (4.355–33.839)	<0.001
Max diameter of lymph nodes (≥10 vs. <10 mm)	2.340 (0.795–6.889)	0.1246
miR-18a	3.405 (1.334–8.693)	0.0108	2.203 (0.430–11.298)	0.3460
miR-135b	2.482 (1.014–6.076)	0.0477	0.616 (0.126–3.013)	0.5517
miR-204	0.945 (0.411–2.171)	0.8938
miR-497	1.424 (0.611–3.321)	0.4151

HR, hazard ratio; CI, confidence interval; miR, microRNA.