Early failure

P value

No (n = 80)

Yes (n = 20)

No.

%

No.

%

Age

<40 years

38

47.5

9

45

0.592

≥40 years

42

52. 5

11

55

Gender

Male

42

40.0

10

50

0.706

Female

38

60.0

10

50

Site

Colon

61

67.5

13

65

0.779

Rectum

19

32.5

7

35

Pathology

Adenocarcinoma

72

75

14

70

0.280

Other variants

8

25

6

30

Grade

Well diff

18

57.5

6

30

0.229

Mod diff

24

36.25

8

40

Poorly diff

24

6.25

6

30

Tumor invasion

T2

9

12.5

5

25

0.002*

T3

66

80.0

4

20

T4

5

7.5

11

50

Lymph node status

N1

43

56.25

9

45

0.249

N2

37

43.75

11

55

CEA

Normal

53

75

5

25

0.041*

Abnormal

27

25

15

75

ERCC1

Positive

5

12.5

16

80

0.004*

Negative

75

87.5

4

20