Table IV.

Association between nuclear claudin expression and clinicopathological characteristics of colorectal adenocarcinoma in 100 tissue samples from patients.

	Claudin-3 expression			Claudin-7 expression
Characteristics	(−)	(+)	P-value	(−)	(+)	P-value
Age, years			0.563			1.000
<60	16	6		22	0
≥60	62	16		76	2
Sex			0.088			0.511
Male	50	9		57	2
Female	28	13		41	0
Histological type			0.001			0.345
Well- to moderately-differentiated	69	12		80	1
Mucinous	9	10		18	1
Lymphatic invasion			0.867			0.526
Negative	25	6		30	1
Positive	53	16		68	1
Venous invasion			0.370			1.000
Negative	14	6		20	0
Positive	64	16		78	2
Lymph node metastasis			0.794			0.777
N0	52	13		63	2
N1	21	7		28	0
N2	4	2		6	0
N3	1	0		1	0
Depth of tumor invasion			0.181			0.319
Tis	1	0		1	0
T1	8	2		9	1
T2	4	2		6	0
T3	45	7		52	0
T4	20	11		30	1
Stage			0.350			0.662
0	1	0		1	0
I	11	4		14	1
II	40	9		48	1
III	26	8		34	0
IV	0	1		1	0