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 |