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Table 4 Clinicopathologic characteristics of the missed lesions in both groups

From: Effectiveness of switching endoscopists for repeat surveillance colonoscopy: a retrospective study

Characteristics of the missed lesions

D group

S group

p value

Number of lesions (Total: 194)

131

63

 

Tumor location, n (%)

  

0.57

Right

40 (30.5%)

24 (38.1%)

 

Transverse

60 (45.8%)

25 (39.7%)

 

Left

31 (23.7%)

14 (22.2%)

 

Tumor size

  

0.09

Diminutive (≤ 5 mm)

88 (67.1%)

47 (74.6)

 

Medium (6–9 mm)

17 (12.3%)

11 (17.5)

 

Large (≥ 10 mm)

26 (19.9%)

5 (7.9)

 

Morphology

  

0.97

Flat

85 (64.9%)

42 (66.7%)

 

Sessile

44 (33.6%)

20 (31.8%)

 

Pedunculated

2 (1.5%)

1 (1.6%)

 

Pathology

  

0.08

High grade adenoma, Tis (M)

6 (4.6%)

0 (0)

 

Low grade adenoma

114 (87.0%)

61 (96.8%)

 

SSL

11 (8.4%)

2 (8.4%)

 

Index Lesion

29 (22.1%)

5 (7.9%)

0.01

  1. Right, Cecum and Ascending colon; Left, Descending and Sigmoid colon and rectum; S group, same endoscopist group; D group, different endoscopist group; SSL, sessile serrated lesion; Index Lesion, adenomatous lesion ≥ 10 mm in size or high-grade dysplasia or invasive carcinoma