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Table 2 Main findings from the comparison between narrow-band imaging group and conventional group.

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

Outcome

NBI group (n = 241)

Conventional group (n = 241)

Measurement of the intervention effect*

Significance (p)

Total number of polyps (visual inspections)

77

102

RR 0.75 (0.60 to 0.96)

0.02

Proportion of patients with at least one polyp

50 (20.8%)

60 (24.9%)

RR 0.83 (0.60 to 1.16)

Ns

Mean number of polyps

0.32 (SD 0.73)

0.42 (SD 0.93)

MD -0.1 (-0.25 to 0.05)

Ns

Rate of polyp ≤ 5 mm

51 (21.2%)

62 (25.7%)

RR 0.82 (0.59 to 1.14)

Ns

Mean time to find the first polyp (seconds)

230.8 (SD 227.20)

220.81 (SD 233.93)

MD 10.80 (-30.27 to 51.87)

Ns

  1. * Rate ratio (RR) and 95% CI or mean difference (MD) and 95% CI.