Fig. 5From: Improving perioperative management of surgical sets for trauma surgeries: the 4S approachGlobal set processing costs in the current practice and following the introduction of the 4S program. Abbreviations: LL, lower limit; M, median; Q1, 25% quartile; Q3, 75% quartile; UL, upper limit. Q3 + 1.5×IQR (UL); Q1—1.5×IQR (LL). Points outside the box-and-whisker plot are outliersBack to article page