Improving perioperative management of surgical sets for trauma surgeries: the 4S approach

Table 5 Summary of results of NASA-TLX questionnaires for the current practice, and following introduction of the 4S program

NASA-TLX dimension, median score^a (range)	Current practice (n = 5)	Following 4S program introduction (n = 5)	p value^b
Mental challenge	65 (50–80)	15 (15–40)	0.008
Physical demand	65 (45–80)	15 (15–40)	0.008
Time requirements	80 (65–90)	15 (15–40)	0.008
Effort^c	65 (35–75)	40 (15–90)	0.753
Performance^d	85 (55–85)	30 (15–40)	0.007
Frustration level	70 (55–90)	15 (10–40)	0.009

^aMedian score measured on a scale of 0–100 (very low–very high)
^bWilcoxon rank sum test
^cEffort is defined as the degree of mental and physical effort that the individual has to make to obtain their level of performance
^dPerformance reflects the mental workload that an individual experienced to be satisfied with their performance

ISSN: 1472-6963