Secondary outcomes
| Analysis | SC N (%) | EAC N (%) | Difference (one-sided 97.5% CI) | One-sided P value |
| Mean adenomas per procedure * | ||||
| Global | 0.75 (1.40) | 0.95 (1.89) | 0.20 (0.07 to ∞) | 0.02 |
| Non-BCSP | 0.37 (0.80) | 0.44 (1.24) | 0.07 (−0.04 to ∞) | 0.42 |
| BCSP | 1.20 (1.77) | 1.59 (2.32) | 0.39 (0.15 to ∞) | 0.004 |
| Polyp detection rate | ||||
| Global | 424 (48.0%) | 480 (54.1%) | 6.1% (2.2% to ∞) | 0.005 |
| Non-BCSP | 169 (35.1%) | 189 (38.3%) | 3.1% (−2.0% to ∞) | 0.16 |
| BCSP | 255 (63.3%) | 291 (73.9%) | 10.6% (5.2% to ∞) | <0.001 |
| Sessile serrated adenomas | ||||
| Global | 10 (1.1%) | 20 (2.3%) | 1.1% (0.1% to ∞) | 0.03 |
| Non-BCSP | 5 (1.0%) | 12 (2.4%) | 1.4% (0.0% to ∞) | 0.05 |
| BCSP | 5 (1.2%) | 8 (2.0%) | 0.8% (−0.7% to ∞) | 0.19 |
| Left colon adenomas | ||||
| Global | 196 (22.2%) | 232 (26.1%) | 4.0% (0.6% to ∞) | 0.03 |
| Non-BCSP | 64 (13.3%) | 71 (14.4%) | 1.1% (−2.6% to ∞) | 0.31 |
| BCSP | 132 (32.8%) | 161 (40.9%) | 8.1% (2.5% to ∞) | 0.009 |
| Right colon adenomas | ||||
| Global | 219 (24.8%) | 244 (27.5%) | 2.7% (−0.7% to ∞) | 0.10 |
| Non-BCSP | 66 (13.7%) | 74 (15.0%) | 1.3% (−2.4% to ∞) | 0.29 |
| BCSP | 153 (38.0%) | 170 (43.2%) | 5.2% (−0.5% to ∞) | 0.07 |
| Large adenomas (10+ mm) | ||||
| Global | 61 (6.9%) | 70 (7.9%) | 1.0% (−1.1% to ∞) | 0.21 |
| Non-BCSP | 11 (2.3%) | 16 (3.2%) | 1.0% (−0.8% to ∞) | 0.18 |
| BCSP | 50 (12.4%) | 54 (13.7%) | 1.3% (−2.6% to ∞) | 0.29 |
| Small adenomas (6–9 mm) | ||||
| Global | 68 (7.7%) | 94 (10.6%) | 2.9% (0.6% to ∞) | 0.02 |
| Non-BCSP | 25 (5.2%) | 19 (3.9%) | −1.4% (−3.5% to ∞) | 0.85 |
| BCSP | 43 (10.7%) | 75 (19.0%) | 5.4% (4.2% to ∞) | <0.001 |
| Diminutive adenomas (≤5 mm) | ||||
| Global | 272 (30.8%) | 307 (34.6%) | 3.8% (0.1% to ∞) | 0.04 |
| Non-BCSP | 92 (19.1%) | 102 (20.7%) | 1.5% (−2.7% to ∞) | 0.28 |
| BCSP | 180 (44.7%) | 205 (52.0%) | 7.4% (1.6% to ∞) | 0.02 |
*Mean and SD reported.
BCSP, Bowel Cancer Screening Programme; EAC, EV-assisted colonoscopy; SC, standard colonoscopy.