Table V.
Specific metrics for exercise 3 – Suture Sponge – level 3 (bold values for statistical significance, ns – not statistically significant)
| Variable | Sleep deprivation (SD) group Mean ± standard deviation | No sleep deprivation (nSD) group Mean ± standard deviation | Statistical significance | ||
|---|---|---|---|---|---|
| Pre-shift | Post- shift | Morning | Next morning | ||
| Time to complete [s] | 254 ±32 | 299 ±134 | 261 ±38 | 265 ±36 | Pre-shift vs. post-shift p = 0.037 Pre-shift vs. morning p > 0.05 – ns Post-shift vs. next morning p = 0.042 |
| Economy of motion [cm] | 355 ±101 | 528 ±88 | 367 ±98 | 370 ±94 | Pre-shift vs. post-shift p = 0.027 Pre-shift vs. morning p > 0.05 – ns Post-shift vs. next morning p = 0.034 |
| Instrument collision | 2.4 ±0.8 | 8.4 ±1.2 | 2.5 ±0.7 | 2.6 ±0.6 | Pre-shift vs. post-shift p = 0.032 Pre-shift vs. morning p > 0.05 – ns Post-shift vs. next morning p = 0.039 |
| Excessive force | 0.2 ±0.03 | 0.7 ±0.07 | 0.3 ±0.05 | 0.2 ±0.06 | Pre-shift vs. post-shift p = 0.030 Pre-shift vs. morning p > 0.05 – ns Post-shift vs. next morning p = 0.030 |
| Instruments out of view | 0.78 ±0.19 | 1.42 ±0.4 | 0.71 ±0.5 | 0.75 ±0.4 | Pre-shift vs. post-shift p = 0.030 Pre-shift vs. morning p > 0.05 – ns Post-shift vs. next morning p = 0.024 |
| Drops | 0.1 ±0.02 | 0.9 ±0.03 | 0.2 ±0.02 | 0.2 ±0.01 | Pre-shift vs. post-shift p = 0.027 Pre-shift vs. morning p > 0.05 – ns Post-shift vs. next morning p = 0.03 |
| Master workspace | 7.6 ±1.4 | 9.1 ±1.6 | 7.5 ±1.3 | 7.4 ±1.2 | Pre-shift vs. post-shift p = 0.037 Pre-shift vs. morning p > 0.05 – ns Post-shift vs. next morning p = 0.032 |