Table 4.
Sensitivity analysis excluding participants with > 7 years experience
| Total (n = 40) | Robotic surgery (n = 20) | Laparoscopic surgery (n = 20) | p value | |
|---|---|---|---|---|
| Age, mean, SD | 36 ± 7 | 38 ± 9 | 40 ± 8 | 0.343a |
| Male, n (%) | 31 (77.5) | 16 (80.0) | 15 (75.0) | 0.70b |
| Surgical experience | ||||
| Years of experience with approach, median [IQR] | 2 [1–5] | 1 [0–2] | 5 [3–6] | < 0.001c |
| Experte | 1 [1–2] | 6 [6-NA] | < 0.001c | |
| Residentr | 0 [0–1] | 4 [3–6] | 0.013 | |
| Annual volume of advanced MI procedures*, median (IQR) | 15 [1–40] | 20 [1–40] | 15 [3–48] | 0.752c |
| MIPDs performed, median (IQR) | 0 [0–1] | 0 [0–20] | 0 [0–0] | 0.023c |
| Hand dominance, n (%) | -b | |||
| Right | 34 (85.0) | 17 (85.0) | 17 (85.0) | |
| Left | 4 (10.0) | 2 (10.0) | 2 (10.0) | |
| Ambidextrous | 2 (5.0) | 1 (5.0) | 1 (5.0) | |
| Vision correction, n (%) | 17 (42.5) | 9 (45.0) | 8 (40.0) | 0.10b |
| Minimal degrees of stereopsis | 60 [20–100] | 60 [20–100] | 60 [40–100] | 0.812c |
Values are mean ± SD, median [quartile 1–quartile 3] or n (percentage)
aStudent’s ttest, bChisquare test, cMann-Whitney U Test, *Minimally invasive surgery beyond appendectomy and cholecystectomy, eexperience as primary surgeon, rexperience assisting or under direct supervision of primary surgeon