TABLE 5.
Odds ratios (95% confidence intervals) from multivariate logistic regression analyses of colonoscopy-related adverse events for endoscopist volume and facility type, stratified by procedure
| No polypectomy |
With polypectomy |
||||||
|---|---|---|---|---|---|---|---|
| Adverse events | Provider characteristics | Simple colonoscopy (n = 1,027,515) | Cold biopsy forceps (n = 292,667) | Ablation (n = 52,024) | Hot biopsy or cautery forceps (n = 346,150) | Snare (n = 403,077) | Complex colonoscopy (n = 193,693) |
| Endoscopist volume | |||||||
| Cumulative GI adverse events | ≥300 | 1 | 1 | 1 | 1 | 1 | 1 |
| <300 | 1.45 (1.17-1.81) | 1.58 (1.11-2.25) | 0.80 (0.50-1.29) | 1.17 (0.98-1.40) | 1.12 (0.99-1.29) | 1.13 (0.94-1.35) | |
| HOPD | 1 | 1 | 1 | 1 | 1 | 1 | |
| ASC | 2.42 (1.94-3.01) | 1.36 (0.93-2.00) | 0.62 (0.37-1.03) | 1.05 (0.88-1.23) | 1.43 (1.26-1.61) | 1.01 (0.83-1.22) | |
| Endoscopist volume | |||||||
| ≥300 | 1 | 1 | 1 | 1 | 1 | 1 | |
| GI bleeding | <300 | 1.34 (0.98-1.82) | 1.45 (0.94-2.24) | 0.69 (0.40-1.16) | 1.11 (0.92-1.34) | 1.13 (0.98-1.30) | 1.11 (0.92-1.34) |
| HOPD | 1 | 1 | 1 | 1 | 1 | 1 | |
| ASC | 1.29 (0.95-1.75) | 1.12 (0.70-1.78) | 0.48 (0.28-0.82) | 0.99 (0.83-1.17) | 1.36 (1.20-1.55) | 0.93 (0.75-1.14) | |
| Endoscopist volume | |||||||
| ≥300 | 1 | 1 | 1 | 1 | 1 | 1 | |
| Colonic perforation | <300 | 1.56 (1.16-2.08) | 1.88 (1.04-3.41) | 1.78 (0.72-4.44) | 1.77 (1.14-2.75) | 1.15 (0.78-1.70) | 1.28 (0.81-2.00) |
| HOPD | 1 | 1 | 1 | 1 | 1 | 1 | |
| ASC | 5.00 (3.47-7.22) | 2.17 (1.19-3.96) | 1.95 (0.83-4.58) | 1.66 (1.06-2.62) | 2.25 (1.58-3.19) | 1.93 (1.30-2.87) | |
HOPD, Hospital outpatient department; ASC, ambulatory surgery center.