Table 1.

Relationships between the expression of MMP-9 and clinicopathological features in human hilar cholangiocarcinoma

Clinicopathological features	n	MMP-9		P*
		+/-	++
Gender				0.228
Male	41	24	17
Female	17	7	10
Age (years)				0.266
< 60	32	15	17
≥ 60	26	16	10
Differentiation				0.201
Well/moderately	20	13	7
Poorly	38	18	20
Bismuth-Corlette classification				0.879
Type I	15	7	8
Type II	6	3	3
Type IIIa	9	6	3
Type IIIb	10	6	4
Type IV	18	9	9
Tumor size (cm)				0.438
< 3	15	9	6
3-5	11	4	7
>5	32	18	14
Tumor stage				0.648
T1	12	7	5
T2	19	8	11
T3	27	12	15
Lymph node metastasis				0.690
No	36	23	13
Yes	22	8	14
TNM stage				0.518
I	9	4	5
II	15	9	6
IIIa	6	3	3
IIIb	7	5	2
IVa	21	8	13

^*X² test.