Demographic and clinical characteristics of 1650 participants who underwent tandem colonoscopies for screening by randomisation arm
| NBI-WL group | FICE-WL group | WL-WL group | p Value* | |
|---|---|---|---|---|
| No. of subjects | 550 | 550 | 550 | |
| Age (years), mean±SD | 51.4±8.6 | 51.3±8.8 | 51.5±8.9 | 0.730 |
| Men, n (%) | 345 (62.7) | 340 (61.8) | 370 (67.2) | 0.216 |
| Sedation, n (%) | 0.582 | |||
| Midazolam | 502 (91.3) | 520 (94.5) | 516 (93.8) | |
| None | 48 (8.7) | 30 (5.5) | 34 (6.2) | |
| Bowel preparation,† n (%) | 0.473 | |||
| Excellent or good | 262 (47.6) | 256 (46.5) | 245 (44.5) | |
| Fair | 264 (48.0) | 267 (48.5) | 280 (50.9) | |
| Poor | 24 (4.4) | 27 (4.9) | 25 (4.5) | |
| Insertion time (min), mean±SD | 5.1±2.2 | 5.2±3.0 | 5.3±2.8 | 0.129 |
*WL not significantly different compared with NBI and FICE; NBI not significantly different compared with FICE.
†Grade at the most poorly prepared segment.
FICE, flexible spectral imaging chromoendoscopy; NBI, narrow band imaging; WL, white light colonoscopy.