Table 2.

Univariate and multivariate analyses for disease-free survival

Characteristic	Univariate analysis			Multivariate analysis
	RR	95 % CI	P	RR	95 % CI	P
Sex
Male/female	0.978	0.295–3.733	0.972
Lesion
Colon/rectum	0.697	0.201–2.314	0.550
Differentiation
tub1, tub2/muc, por	0.148	0.038–0.971	0.047*	0.099	0.016–0.765	0.030*
Tumor size
≤35 mm/>35 mm	0.235	0.013–1.227	0.094
Depth
T1, T2/T3, T4	<0.0001	0.429–0.429	0.005*	<0.0001	0.269–1.201	0.071
Lymph node metastasis
Negative/positive	0.179	0.039–0.620	0.006*	0.331	0.071–1.183	0.090
Lymphatic permeation
Negative/positive	0.286	0.063–0.990	0.048*	0.277	0.060–0.978	0.046*
Venous permeation
Negative/positive	0.767	0.221–2.547	0.661
miR-132 expression
Low/high	5.01	1.290–32.834	0.018*	5.838	1.374–42.770	0.015*

RR relative risk, CI confidence interval

* Statistically significant