| | | | Clinical setting of index colonoscopy | | Overall | Teaching hospital | Community hospital | Nonhospital facility | | OR (95% CI) | OR (95% CI) | OR (95% CI) |
| | Patient factors | | Patient age (per one year increase) | 0.99 (0.98, 1.00) | 0.99 (0.98, 1.01) | 0.99 (0.98, 1.00) | 0.99 (0.98, 1.00) |
| | Patient sex | | | | | | Female | 0.93 (0.85, 1.03) | 1.09 (0.85, 1.39) | 0.94 (0.81, 1.09) | 0.92 (0.78, 1.08) | | Male | Reference | Reference | Reference | Reference |
| | Patient ADG | 0.97 (0.95, 0.99) | 0.96 (0.92, 1.00) | 0.97 (0.94, 1.00) | 0.97 (0.04, 1.00) |
| | Index colonoscopy factors | | Setting | | | | | | Teaching hospital | 0.80 (0.62, 1.01) | Not applicable | Not applicable | Not applicable | | Community hospital | Reference | | Nonhospital facility | 0.71 (0.60, 0.83) |
| | Complete | Reference | Reference | Reference | Reference | | Incomplete | 1.63 (1.37, 1.93) | 1.32 (0.91, 1.91) | 1.50 (1.18, 1.90) | 1.22 (0.91, 1.65) |
| | Open access | Reference | Reference | Reference | Reference | | Not open access | 1.10 (0.98, 1.24) | 1.42 (1.03, 1.94) | 0.90 (0.74, 1.10) | 1.35 (1.11, 1.64) |
| | Most complex procedure at index colonoscopy | | | | | | “Removal of large polyp or obstructing lesion” | 2.33 (1.75, 3.10) | 1.76 (0.83, 3.70) | 3.18 (1.94, 5.21) | 1.94 (1.26, 3.00) | | Standard polypectomy | 0.77 (0.68, 0.88) | 0.91 (0.63, 1.32) | 0.82 (0.69, 0.98) | 0.71 (0.57, 0.87) | | Biopsy | 0.35 (0.29, 0.43) | 0.49 (0.33, 0.74) | 0.35 (0.28, 0.45) | 0.30 (0.21, 0.42) | | None of the above | Reference | Reference | Reference | Reference |
| | Index endoscopist prior year volumes | | Colonoscopy | 1.01 (0.99, 1.03) | 1.03 (0.97, 1.08) | 0.99 (0.97, 1.02) | 1.02 (1.00. 1.05) |
| | Standard polypectomy | 1.04 (1.01, 1.06) | 1.00 (0.93, 1.08) | 1.05 (1.01, 1.08) | 1.03 (0.99, 1.06) |
| | Large or obstructing polypectomy | 1.07 (1.02, 1.11) | 1.07 (0.96, 1.19) | 1.09 (1.02, 1.15) | 1.06 (1.00, 1.13) |
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