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Table 2 Comparison of clinicopathological factors in the ECC-positive and ECC-negative groups

From: Positive detection of exfoliated colon cancer cells on linear stapler cartridges was associated with depth of tumor invasion and preoperative bowel preparation in colon cancer

 

ECC-positive group

ECC-negative group

p value

(n = 20)

(n = 80)

Age

67.3 ± 12.0 years old

72.0 ± 9.6 years old

N.S

Gender

 M

8

43

N.S

 F

12

37

 

Operation method

 Laparoscopic surgery

10 (50 %)

51 (63.8 %)

N.S

 Open surgery

10 (50 %)

29 (36.2 %)

 

Tumor location

 Cecum

4 (20 %)

13 (16.3 %)

N.S

 Ascending colon

9 (45 %)

32 (40 %)

 

 Transverse colon

4 (20 %)

24 (30 %)

 

 Descending colon

0 (0 %)

2 (2.5 %)

 

 Sigmoid colon

3 (15 %)

9 (11.2 %)

 

Depth of tumor invasion

 pTis

0 (0 %)

8 (10 %)

0.012

 pT1

0 (0 %)

16 (20 %)

(Tis, T1 vs. T2–T4)

 pT2

2 (10 %)

5 (6.2 %)

 

 pT3

16 (80 %)

31 (38.8 %)

 

 pT4

2 (10 %)

20 (25 %)

 

Tumor size (mean ± SE)

 

58.6 ± 16.7 mm

49.2 ± 32.6 mm

0.0239

Lymph node metastasis

 pN(−)

13

48

N.S

 pN(+)

7

32

 

Distant metastasis

 pM0

1

12

N.S

 pM1

19

68

 

cStage

 0

0

7

N.S

 I

2

18

 

 II

10

21

 

 III

7

21

 

 IV

1

13

 

Histopathological classification

 Well

8

38

N.S

 Moderately

9

33

 

 Poorly

1

6

 

 Others

2

3

 

Margin from tumor (mean ± SE)

 Oral side

16.7 ± 2.5 cm

14.6 ± 1.1 cm

N.S

 Anal side

12.3 ± 1.5 cm

12.8 ± 1.0 cm

N.S

Preoperative bowel preparation

 PEG

8 (40 %)

60 (75 %)

0.003

 Others

12 (60 %)

20 (25 %)