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Fig. 3 | BMC Health Services Research

Fig. 3

From: How many operating rooms are needed to manage non-elective surgical cases? A Monte Carlo simulation study

Fig. 3

This graph shows the relationship between operating room (OR) utilization and waiting time. The simulation model was used to generate a large range of utilization scenarios; each scenario represents about 4 years of simulated data and the time represents the time (hours/year) patients had to wait. The number of ORs (range 3–12) was varied to achieve the different utilizations. Note that waiting time increased as the utilization increased, with an exponential rise at around 70–75 %. These data are consistent with the classical relationship between wait time and utilization. The error bars are the standard deviation; when error bars are not seen they are contained within the corresponding symbol

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