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Patient characteristics
| Patient characteristics | Number or percentage |
| Number of patients | 123 |
| Average age (range) | 68.4 ± 9 (49-90) yr |
| Male, female | 122, 1 |
| Indication for procedure | Screening (48%) |
| History of polyps (24%) | |
| Iron def anemia (9%) | |
| Hematochezia (7%) | |
| Occult-blood positive stool (7%) | |
| Other (5%) | |
| Indication for warfarin | Atrial fibrillation (65%) |
| Thromboembolism (16%) | |
| Mechanical valve (9%) | |
| Other indications (13%) |
