Outcomes based on the timing of the procedure (AM vs PM)
| AM (N=662) (%) | PM (N=980) (%) | Total (N=1642) (%) | P value | |
| Preparation quality | ||||
| Fair | 165 (24.9) | 234 (23.9) | 399 (24.3) | 0.576 |
| Good | 407 (61.5) | 626 (63.9) | 1033 (62.9) | |
| Poor | 90 (13.6) | 120 (12.2) | 210 (12.8) | |
| ADR | 197 (29.8) | 321 (32.8) | 518 (31.5) | 0.220 |
ADR, adenoma detection rate; AM, morning; PM, afternoon.