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Table 2 Cost comparison of two anaesthetic machines: "Primus®" and "Zeus®"

From: Cost analysis of two anaesthetic machines: "Primus®" and "Zeus®"

  Primus® Zeus® p-value
Age [years] 60 ± 19.6 72 ± 9.5 n.s.
Weight [kg] 80 ± 29.9 80 ± 29.4 n.s
Height [cm] 164 ± 30.8 163 ± 26 n.s
Purchase Costs [€] 62.894.01 88.056.43  
Minutes of operation [hour]/year 1,920 1,920  
Cost [€/hr of operation] 3.28 4.58  
Maintenance Draeger [€/year] 1.000.90 1.379.00  
Maintenance in-house [€/year] 420 420  
Draeger Vaporiser Maintenance [€/year] 188.00 523.28  
Vaporiser - in house maintenance [€/year] 144.00   
Maintenance [€/hr) 0.90 1.20  
Anaesthesia duration [minutes] 278 ± 140 208 ± 112 0.14
O2-consumption [m3/anaesthesia] 0.1468 ± 0.0846 0.233 ± 0.180  
O2-costs [€/anaesthesia] 0.0540 ± 0.030 0.086 ± 0.066  
O2-costs [€/hr] 0.015 ± 0.013 0.056 ± 0.121 < 0.05
Medical air-Consumption [m3/anaesthesia] 0.0546 ± 0.0377 0.0925 ± 0.06892  
Medical air-cost [€/anaesthesia] 0.02020 ± 0.01347 0.03144 ± 0.02264  
Medical air-cost [€/hr] 0.005 ± 0.003 0.016 ± 0.027 < 0.05
Volatile anaesthetic [ml/anaesthesia] 18.26 ± 9.71 27.10 ± 29.15  
Volatile anaesthetic [€/anaesthesia] 10.09 ± 6.43 9.67 ± 6.56  
Volatile anaesthetic [€/hr] 2.40 ± 2.40 4.80 ± 4.80 < 0.05
CO2-Absorber [€/hr] 1.36 1.36  
IBF-Filter [€/hr]   0.25  
Electricity cost [€/hr] 0.024 0.048  
Rent for an OP theatre [€/hr] 12.00 12.00  
Surface disinfection [€/anaesthesia] 0.15 0.15  
Consumable costs [€/anaesthesia] 17.03 17.03  
Training on equipment [€/hr] 0.54 0.54  
Cost of an anaesthetist [€/hr] 42.00 42.00  
Cost of an ODP [€/hr] 27.00 27.00  
Cost of a medical technician [€/hr] 24.00 24.00