| Mean (SD) | p Value | ||
| Pentax | Olympus lucera | ||
| Fentanyl dose (μg) | 61.4 (18.5) | 57.5 (18.0) | 0.13 |
| Midazolam dose (mg) | 2.4 (0.7) | 2.1 (0.6) | 0.035 |
| Comfort score | 1.0 (0.6) | 0.5 (0.6) | <0.0001 |
| Insertion time (min) | 11.6 (7.5) | 11.1 (6.6) | 0.93 |
| Withdrawal time* (min) | 14.7 (8.0) | 15.6 (8.2) | 0.20 |
| Total polyps | 1.6 (1.7) | 1.4 (2.0) | 0.19 |
| Total/proximal adenomas | 1.1 (1.3)/0.4 (0.7) | 1.0 (1.5)/0.4 (0.9) | 0.28/0.74 |
| Advanced adenomas | 0.3 (0.5) | 0.4 (0.7) | 0.64 |
↵* In normal colonoscopies.