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Adenoma detection on screening colonoscopy using air and water method
| Air Method | Water Method | p* | |
| Total number of patients | 683 | 495 | |
| Number of patients with at least 1 adenoma | 183 (26.8%) | 173 (34.9%) | 0.0031 |
| Adenoma >9 mm | 49 (7.2%) | 68 (13.7%) | 0.0002 |
| Adenoma >9 mm (proximal) | 20 (2.9%) | 29 (5.9%) | 0.0173 |
| Adenoma >9 mm (distal) | 29 (4.2%) | 39 (7.9%) | 0.0109 |
| Dysplasia/adenocarcinoma | 6 (0.88%) | 4 (0.81%) | NS |
vs. air, P<0.05; Fisher's exact test. NS, not significant.
