Table 4. Relationship between the expression level of miRNAs and overall survival in 48 colorectal cancer patients with liver metastases.

				95% CI						95% CI
Primary tumor		Median OS	SEM	Lower bound	Upper bound	Liver metastases		Median OS	SEM	Lower bound	Upper bound
miR-377	Low	29.867	5.509	19.069	40.664	miR-377	Low	24.133	13.966	0	51.506
	High	42.233	11.776	19.152	65.314		High	37.067	NR	NR	NR
	p value	0.761					p value	0.417
miR-200c	Low	24.133	3.290	17.684	30.582	miR-200c	Low	26.033	5.702	14.858	37.209
	High	NR	NR	NR	NR		High	48.3	12.092	24.599	72.001
	p value	0.048*					p value	0.266
miR-99b-5p	Low	23.467	2.212	19.131	27.802	miR-99b-5p	Low	23.467	1.594	20.343	26.59
	High	48.300	NR	NR	NR		High	48.3	12.096	24.592	72.008
	p value	0.052					p value	0.098
miR-196b-5p	Low	23.467	1.71	20.115	26.819	miR-196b-5p	Low	21.633	1.686	18.329	24.937
	High	42.233	NR	NR	NR		High	NR	NR	NR	NR
	p value	0.116					p value	0.02*

Abbreviations: CI: confidence interval; miRNA, microRNA; NR: not reached; OS, overall survival; SEM, standard error of the mean. *p ≤ 0.05.