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Table 2 Comparison of demographic characteristics between Groups A* and B^

From: Synchronous polypectomy during endoscopic diagnosis of colorectal cancer – is the risk of tumour implantation at the polypectomy site significant?

 

Group A * (n = 87)

Group B^ (n = 194)

p-value

Median age (range)

67 (34–92)

70 (32–94)

0.25

Gender

0.348

 Male (%)

61 (70.1%)

124 (63.9%)

 

 Female (%)

26 (29.9%)

70 (36.1%)

Tumor site, n (%)

0.838

 Caecum

4 (4.6%)

13 (6.7%)

 

 Ascending

5 (5.7%)

21 (10.8)

 

 Hepatic Flexure

6 (6.9%)

6 (3.1%)

 

 Transverse

2 (2.3%)

5 (2.6%)

 

 Splenic Flexure

1 (1.2%)

3 (1.5%)

 

 Descending

4 (4.6%)

9 (4.6%)

 

 Sigmoid

27 (31.0%)

47 (24.2%)

 

 Rectum

38 (43.7%)

90 (46.9%)

 

T Stage, n (%)

0.434

 T1

17 (19.5%)

21 (10.8%)

 

 T2

15 (17.2%)

37 (19.1%)

 

 T3

43 (49.4%)

115 (59.3%)

 

 T4

12 (13.8%)

21 (10.8%)

 

N Stage, n (%)

0.361

 N0

50 (57.5%)

102 (52.6%)

 

 N1

21 (24.1%)

44 (22.7%)

 

 N2

16 (18.4%)

48 (24.7%)

 

Lympho-vascular Invasion, n (%)

25 (28.7%)

60 (30.9%)

0.688

Peri-neural invasion, n(%)

17 (19.5%)

33 (17.0%)

0.625

  1. Group A* - Patients who had all synchronous polypectomy sites resected
  2. Group B^ - Patients who had synchronous polypectomy sites left in situ