Table 2. Relationship between ZIP7 protein expression and clinicopathological characteristics of patients with colorectal cancer n (%).

Variables	Total	ZIP7		χ2 value	P value
		+ (n=80)	(n=38)
Age				0.662	0.416
<60	81	53 (65.4)	28 (34.6)
≥60	37	27 (73.0)	10 (27.0)
Gender				0.128	0.720
Male	68	47 (69.1)	21 (30.9)
Female	50	33 (66.0)	17 (34.0)
Size of tumor (cm)				0.028	0.866
<5	67	45 (67.2)	22 (32.8)
≥5	51	35 (68.6)	16 (31.4)
Dukes				8.350	0.039
A	14	7 (50.0)	7 (50.0)
B	42	24 (57.1)	18 (42.9)
C	34	28 (82.4)	6 (17.6)
D	28	21 (75.0)	7 (25.0)
Lymph node metastasis				7.554	0.006
Yes	62	49 (79.0)	13 (21.0)
No	56	31 (55.4)	25 (44.6)
Invasion depth				9.408	0.002
T1 + T2	34	16 (47.1)	18 (52.9)
T3 + T4	84	64 (76.2)	20 (23.8)