Table 1. Baseline clinical characteristics of the two groups.

Item	Treatment group (n=44)	Control group (n=45)	P
ECOG PS score
0	6	7	0.869
1	21	23
2	17	15
Primary tumor site
Colon	18	21	0.584
Rectum	26	24
Hepatic metastases
Yes	24	23	0.746
No	20	22
Pathology type
Highly to moderately differentiated adenocarcinoma	12	14	0.691
Poorly differentiated or mucinous adenocarcinoma	32	31
Adjuvant chemotherapy
Yes	17	20	0.578
No	27	25