Preoperative carcinoembryonic antibody is predictive of distant metastasis in pathologically T1 colorectal cancer after radical surgery

Table 1 Characteristics of 159 patients n (%)

Characteristics	With T1 colorectal cancer	Without metastasis(n = 153)	With metastasis(n = 6)	P value
Age, yr, mean ± SD	60.7 ± 11.7	60.48 ± 11.83	66.33 ± 7.012	0.231
Gender				0.099
Male	80 (50.3)	75	5
Female	79 (49.7)	78	1
Primary site				0.647
Cecum	3 (1.9)	3	0
Ascending colon	9 (5.7)	8	1
Transverse colon	6 (3.8)	6	0
Descending colon	6 (3.8)	5	1
Sigmoid colon	21 (13.2)	20	1
Rectosigmoid	8 (5.0)	8	0
Rectum	104 (65.4)	101	3
Anus canal	2 (1.3)	2	0
Pathology				0.919
Well differentiated	11 (6.9)	11	0
Moderately differentiated	83 (52.2)	79	4
Poorly differentiated	2 (1.3)	2	0
Mucinous	4 (2.5)	4	0
Localized canceration	59 (37.1)	57	2
Lymphnode metastasis				0.611
N0	146 (91.8)	141	5
N1	11 (6.9)	10	1
N2	2 (1.3)	2	0
CEA, ng/mL, mean ± SD	3.60 ± 4.01	3.29 ± 3.50	11.35 ± 7.87	0.054

CEA: Carcinoembryonic antibody.