Base-case cost analysis
Charges to patient for thermal management included temperature monitoring (3.12 USD/h. Less than one hour was charged for one hour) and aggressive warming therapy (2.97 USD/h. Less than one hour was charged for one hour).From the perspective of the hospital, the net costs related to thermal management were analyzed, which were the sum of the equipment and staff costs in the base-case scenario. Equipment costs were analyzed considering that the FAW was used with an air compressor for aggressive warming, while the quilt was used for routine warming.Staff costs were treated as variables with more than 8 h of workload. Reducing OR time reduces direct staff costs when operating rooms are used during overtime. In our analysis, the OR ran for over 8 h on each working day, which is consistent with reality. Using a previously reported method (