Table II.

Results of multivariate analysis of clinicopathological factors for overall survival (Cox proportional hazards model).

	Multivariate analysis
Factors	RR (95% CI)	P-value
T factor (T1/2–4)	3.14 (0.39–19.5)	0.250
Lymph node metastasis	1.15 (0.13–24.9)	0.910
Lymphatic invasion	11.4 (0.61–743)	0.120
Venous invasion	2.59 (0.56–12.7)	0.220
Stage (I/II–IV)	2.57 (0.04–211)	0.650
miR-29b expression	15.6 (2.33–348)	0.003

RR, relative risk; CI, confidence interval; miR-29b, microRNA-29b.