Table 1 Comparison of patient demographic and clinical tumor characteristics between KRAS/NRAS/BRAF mutation group and wild type group

Sex

0.644^a

 Male

17(63.0)

24(68.6)

 Female

10(37.0)

11(31.4)

Age(year)

61.11 ± 11.40

64.57 ± 10.21

0.213^b

Tumor location

0.636^a

 Colon or sigmoid colon

20(74.1)

24(68.6)

 Rectum or rectosigmoid junction

7(25.9)

11(31.4)

Differentiation

0.420^a

 Well/moderate

21(77.8)

24(68.6)

 Poor

6(22.2)

11(31.4)

TNM stage

0.044^a

 I-II

17(63.0)

13(37.1)

 III-IV

10(37.0)

22(62.9)

CEA

0.001^a

 < 5.0 ng/ml

21(77.8)

12(34.3)

 ≥ 5.0 ng/ml

6(22.2)

23(65.7)