Table 1 Multivariate logistic regression analysis of patients with inoperable or relapsed colon cancer

sex

 female

36

(40.0)

32

(45.1)

4

(21.1)

0.44

(0.11–1.72)

0.238

 male

54

(60.0)

39

(54.9)

15

(78.9)

1.00(ref.)

age (years)

 ≦70

66

(73.3)

52

(73.2)

14

(73.7)

1.21

(0.28–5.33)

0.799

 >70

24

(26.7)

19

(26.8)

5

(26.3)

1.00(ref.)

ECOG PS

 0

28

(31.1)

17

(23.9)

11

(57.9)

9.94

(0.88–111.88)

0.063

 1

50

(55.6)

43

(60.6)

7

(36.8)

1.81

(0.18–18.42)

0.617

 2

12

(13.3)

11

(15.5)

1

(5.3)

1.00(ref.)

primary site

 right-sided

16

(17.8)

13

(18.3)

3

(15.8)

0.91

(0.13–6.50)

0.925

 left-sided

74

(82.2)

58

(81.7)

16

(84.2)

1.00(ref.)

histology

 well differentiated

25

(27.8)

20

(28.2)

5

(26.3)

1.58

(0.08–29.91)

0.761

 moderately differentiated

58

(64.4)

45

(63.4)

13

(68.4)

1.91

(0.13–27.47)

0.635

 poorly or undifferentiated

7

(7.8)

6

(8.5)

1

(5.3)

1.00(ref.)

RAS

 wild

43

(47.3)

30

(42.3)

13

(68.4)

3.16

(0.83–11.95)

0.092

 mutant

47

(51.6)

41

(57.7)

6

(31.6)

1.00(ref.)

metastasis

 liver

  (-)

31

(34.4)

21

(29.6)

10

(52.6)

4.47

(0.98–20.42)

0.053

  (+)

59

(65.6)

50

(70.4)

9

(47.4)

1.00(ref.)

 lung

  (-)

60

(66.7)

47

(66.2)

13

(68.4)

2.27

(0.46–11.23)

0.313

  (+)

30

(33.3)

24

(33.8)

6

(31.6)

1.00(ref.)

 peritoneum

  (-)

81

(90.0)

63

(88.7)

18

(94.7)

8.55

(0.52–139.56)

0.132

  (+)

9

(10.0)

8

(11.3)

1

(5.3)

1.00(ref.)

 locally advanced tumour

  (-)

77

(85.6)

60

(84.5)

17

(89.5)

3.99

(0.44–35.83)

0.217

  (+)

13

(14.4)

11

(15.5)

2

(10.5)

1.00(ref.)

  total

90

(100)

71

(100)

19

(100)