Table 1 Baseline characteristics of the patients (n = 119)

Age (years)

66 (35–84)*

Sex

 Men

63 (52.9%)

 Women

56 (47.1%)

Tumor location

 Right colon

41 (34.5%)

 Left colon

65 (54.6%)

 Rectum

13 (10.9%)

Tumor size (cm)

5.1 (1.80–11.1)*

Tumor grade

 Low-grade

101 (74.9%)

 High-grade

18 (15.1%)

Lymphovascular invasion

 Absent

76 (63.9%)

 Present

43 (36.1%)

TNM stage

 Stage I

12 (10.1%)

 Stage II

51 (42.9%)

 Stage III

48 (40.3%)

 Stage IV

8 (6.7%)

Serum CEA (ng/ml)

6.4 (1.2–625.2)*

CD4 + cell infiltration

 Grade 0

33 (27.7%)

 Grade 1

41 (34.5%)

 Grade 2

45 (37.8%)

CD8 + cell infiltration

 Grade 0

43 (36.1%)

 Grade 1

44 (37.0%)

 Grade 2

32 (26.9%)

CD163 + cell infiltration

 Grade 0

27 (22.7%)

 Grade 1

46 (38.7%)

 Grade 2

46 (38.7%)

IL-6 expression

 Grade 0

33 (27.7%)

 Grade 1

38 (31.9%)

 Grade 2

48 (40.3%)

MMP-11 expression

 Grade 0

45 (37.8%)

 Grade 1

40 (33.6%)

 Grade 2

34 (28.6%)

Adjuvant treatment

 Yes

100 (84.0%)

 No

19 (16.0%)