Integrin αvβ6 and matrix metalloproteinase 9 correlate with survival in gastric cancer

Table 1 Expression of integrin αvβ6 and MMP-9 and patient characteristics

Characteristic	No.	αvβ6		P value	MMP-9		P value
		Negative	Positive		Negative	Positive
Age (yr)
< 60	51	33	18		31	20
> 60	75	49	26	0.942	42	33	0.593
Gender
Male	78	50	28		43	35
Female	48	32	16	0.769	30	18	0.416
Location
Upper	27	20	7		16	11
Middle	51	28	23		28	23
Lower	48	34	14	0.136	29	19	0.847
Lauren type
Intestinal	83	47	36		46	37
Diffuse	43	35	8	0.006	27	16	0.427
Differentiation
Well	19	15	4		6	13
Moderate	30	14	16		18	12
Poor	77	53	24	0.038	49	28	0.039
T stage
T1	14	10	4		3	11
T2	13	7	6		8	5
T3	18	10	8		14	4
T4	81	55	26	0.578	48	33	0.014
N stage
N0	37	26	11		18	19
N1	17	12	5		10	7
N2	26	10	16		11	15
N3	46	34	12	0.016	34	12	0.033
M stage
M0	124	81	43		73	51
M1	2	1	1	0.652	0	2	0.094
TNM stage
I	12	4	8		3	9
II	42	36	6		22	20
III	70	41	29		48	22
IV	2	1	1	0.002	0	2	0.008

MMP-9: Matrix metalloproteinase 9.