Table 4 Modified NASA-TLX scores
Workload | Intention-to-Treat | p value | Per-Protocol | p value | ||
|---|---|---|---|---|---|---|
NI-SV (n = 35) | MV (n = 35) | NI-SV (n = 32) | MV (n = 33) | |||
Assessed by anesthesiologists | ||||||
Mental demand | 45(40–55) | 35(25–45) | 0.021 | 45(37.5–55) | 35(25–45) | 0.040 |
Physical demand | 40(30–50) | 30(25-42.5) | 0.092 | 35(27.5–50) | 30(25–45) | 0.232 |
Temporal demand | 45(35–55) | 20(10–30) | < 0.001 | 45(32.5–55) | 20(10–30) | < 0.001 |
Effort | 40(30–55) | 30(15–35) | < 0.001 | 40(30–55) | 30(20–35) | 0.001 |
Frustration level | 25(10–45) | 10(10-22.5) | 0.008 | 20(10–45) | 15(10–25) | 0.034 |
The overall score | 37(29.5–52) | 25(19-34.5) | < 0.001 | 37.5(29–52) | 25(19–35) | 0.001 |
Assessed by surgeons | ||||||
Mental demand | 40(25–45) | 35(25–45) | 0.901 | 30(25–45) | 35(25–45) | 0.868 |
Physical demand | 30(22.5–45) | 35(22.5–45) | 0.745 | 32.5(22.5–45) | 35(25–45) | 0.905 |
Temporal demand | 20(10-27.5) | 20(10–30) | 0.986 | 17.5(10–30) | 20(10–30) | 0.979 |
Effort | 35(25–45) | 30(25–45) | 0.561 | 35(25–45) | 30(25–45) | 0.556 |
Frustration level | 15(10–30) | 20(10–30) | 0.967 | 17.5(10–30) | 20(10–30) | 0.931 |
The overall score | 28(21-38.5) | 27(20.5–38.5) | 0.814 | 28(19–39) | 27(21–38) | 0.753 |