Table 1.

Relationship between tissue/serum miR-31 expression and clinical data

Clinical data	Patients (N=118)	Tissue miR-31 expression		P	Serum miR-31 expression		P
		Low (n=57)	High (n=61)		Low (n=45)	High (n=73)
Gender				0.5530			0.6443
Men	65	33	32		26	39
Women	53	24	29		19	34
Age				0.2109			0.1743
<56	51	28	23		23	28
≥56	67	29	38		22	45
Smoking				0.5101			0.6972
No	42	22	20		17	25
Yes	76	35	41		28	48
Alcohol consumption				0.3875			0.2337
No	47	25	22		21	26
Yes	71	32	39		24	47
Distant metastasis				0.3426			0.1101
M0	114	56	58		45	69
M1	4	1	3		0	4
T stage				0.1046			0.3466
T1/T2	41	24	17		18	23
T3/T4	77	33	44		27	50
Node stage				0.0160			0.0296
N0	61	36	25		29	32
N+	57	21	36		16	41
TNM stage				0.0002			<0.0001
I/II	33	25	8		22	11
III/IV	85	32	53		23	62