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Table 1 Baseline characteristics of patients and colonoscopy performance

From: Narrow-band imaging does not improve detection of colorectal polyps when compared to conventional colonoscopy: a randomized controlled trial and meta-analysis of published studies

Parameter

NBI group (n = 241)

Conventional group (n = 241)

Significance (p)

Age (years)

57.36 (SD 12.07)

59.29 (SD 12.91)

Ns

Gender M/F

86/155

95/146

Ns

Weight (kg)

66.73 (SD 12.99)

66.43 (SD 12.45)

Ns

Height (cm)

163.49 (SD 11.37)

163.11 (SD 8.57)

Ns

Total examination time (min)*

9.21 (SD 3.08)

9.22 (SD 3.58)

Ns

Previous colonoscopy

94 (39.0%)

98 (40.7%)

Ns

Indication:

   

Screening

42 (17.4%)

37 (15.4%)

Ns

Surveillance

22 (9.1%)

18 (7.4%)

Ns

Diagnostic

177 (73.5%)

186 (77.2%)

Ns

Last colonoscopy (years)

   

1 to 3

50

51

Ns

3 to 5

25

26

Ns

5 to 10

11

11

Ns

> 10

8

10

Ns

Previous polyp resection

26 (10.8%)

19 (7.9%)

Ns

Familial history of colorectal cancer

44 (18.3%)

36 (14.9%)

Ns

Excellent/good bowel preparation

167 (69.3%)

162 (67.5%)

Ns

  1. *Not including polypectomy time.