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Multivariable estimates [odds ratio (95%CI)] of predictors of suboptimal bowel preparation
| Factor | Suboptimal prep, OR (95%CI) |
| Endoscopy site | |
| Academic in-Hospital Unit | 1.1 (0.76-1.6) |
| Veterans Affairs Hospital | 2.2 (1.1-4.3) |
| African-American | 1.5 (1.0-2.2) |
| Diabetic | 2.3 (1.6-3.2) |
| TCA use | 2.5 (1.3-4.9) |
| Narcotics use | 1.7 (1.2-2.5) |
| Bowel prep type | |
| 8L PEG-3350 | 0.46 (0.24-0.87) |
| MiraLAX®/Gatorade® | 0.61 (0.43-0.86) |
TCA: Tricyclic antidepressants; OR: Odds ratio; PEG: Polyethylene glycol.
