Outcomes based on the diet recommended before the colonoscopy (CLD vs LRD)
| CLD (N=345) (%) | LRD (N=1297) (%) | Total (N=1642) (%) | P value | |
| Prep quality | ||||
| Fair | 81 (23.5) | 318 (24.5) | 399 (24.3) | 0.340 |
| Good | 227 (65.8) | 806 (62.1) | 1033 (62.9) | |
| Poor | 37 (10.7) | 173 (13.3) | 210 (12.8) | |
| ADR | 110 (31.9) | 408 (31.5) | 518 (31.5) | 0.931 |
ADR, adenoma detection rate; CLD, clear liquid diet; LRD, low residue diet.