Abstract：
The variances in operating room (OR) cancellation rates between different service lines and operators within these service lines were assessed by reviewing the electronic medical record (EMR) covering 34,561 cases performed by 199 OR operators in 2018. We assumed that cancellations would differ between different service lines, but the between-operators variance was minimal within the service line. We hypothesized that most variability would be secondary to patient-specific (weekdays, time of year, and national holidays), seasonal and administrative issues. Of 4165 case cancellations, the majority (73.1%) occurred before the patient arrived at the hospital. A total of 60% of all cancellations were within gastroenterology, interventional cardiology, and orthopedics. Cancellation rate variability between surgeons operating within the same service line greatly varied between services from very homogenous to very diverse across providers. The top reasons for cancellation were: date change, canceled by a patient, or \"no show\". The highest cancellation rates occurred on Mondays and Tuesdays, in January and September, and during weeks associated with national holidays. In summary, cancellation variability must be analyzed at the level of individual specialties, operators, and time variability.
摘要：
通过审查2018年由199个OR操作员执行的34,561例电子病历（EMR），评估了不同服务线和这些服务线内操作员之间的手术室（OR）取消率差异。我们假设不同的服务线路之间的取消会有所不同，但运营商之间的差异在服务线内是最小的。我们假设大多数变异性将继发于患者特异性(工作日，一年的时间,和国家假日)，季节性和行政问题。在4165起案件中，大多数(73.1%)发生在患者到达医院之前.总共60%的取消是在胃肠病学范围内，介入心脏病学,和骨科。在同一服务线内操作的外科医生之间的取消率差异很大，从非常同质到提供者之间的服务差异很大。取消的主要原因是：日期更改，被病人取消，或“不显示”。取消率最高的是星期一和星期二,一月和九月,以及与国定假日相关的几周。总之,取消变异性必须在个别专业的水平上进行分析，运营商,和时间可变性。
