Table 2 Simulator assessment metrics
From: Development and validation of a simulation-based assessment tool in colonoscopy
Metrics | Novices (n=8) median (range) | Intermediates (n=8) median (range) | Experts (n=8) median (range) | p value |
|---|---|---|---|---|
Mucosa visualized (%) | ||||
Case 4 | 78.5 (19–88) | 89 (80–92) | 80.5 (72–91) | 0.003† |
Case 7 | 83.5 (17–87) | 89.5 (82–94) | 82 (72–88) | |
Time with clear view (%) | ||||
Case 4 | 94 (80–99) | 94 (93–97) | 96.5 (94–99) | 0.027* |
Case 7 | 92.5 (89–98) | 94.5 (89–98) | 97 (93–99) | |
Time to cecum (s) | ||||
Case 4 | 319 (297–545) | 227 (144–360) | 178 (122–268) | 0.002† |
Case 7 | 321 (240–591) | 207 (164–322) | 204 (103–258) | |
Intubation of terminal ileum (n) | ||||
Case 4 | 0/8 | 6/8 | 5/8 | 0.014‡ |
Case 7 | 5/8 | 7/8 | 7/8 | |
Extensive loop formation (s) | ||||
Case 4 | 0 (0–12) | 0 (0–9) | 0 (0–4) | 0.183§ |
Case 7 | 3.5 (0–75) | 1 (0–8) | 0 (0–19) | |
Hazardous tension (n) | ||||
Case 4 | 0 (0–4) | 1 (0–2) | 0 (0–1) | 0.329¶ |
Case 7 | 1 (0–4) | 0.5 (0–3) | 1 (0–2) | |
Aggregate score (points per minute) | ||||
8.9 (4.2–17.8) | 23.1 (13.0–37.2) | 31.1 (13.9–51.2) | <0.000* | |