• William J Meurer, Cemal B Sozener, Zhenzhen Xu, Shirley M Frederiksen, Allison M Kade, Michael Olgren, Sanford J Vieder, John D Kalbfleish, and Phillip A Scott.
• University of Michigan Medical School, Department of Emergency Medicine, Ann Arbor, Michigan ; University of Michigan Medical School, Department of Neurology, Ann Arbor, Michigan.
• West J Emerg Med. 2013 Feb 1;14(1):16-22.

IntroductionEmergency physician (EP) turnover is a significant issue that can have strong economic impact on hospital systems, as well as implications on research efforts to test and improve clinical practice. This work is particularly important to researchers planning randomized trials directed toward EPs because a large degree of turnover within a physician group would attenuate the effectiveness of the desired intervention. We sought to determine the incidence and factors associated with EP workforce changes.MethodsIn an attempt to determine EP turnover and workforce change, data from the INSTINCT (INcreasing Stroke Treatment through INterventional behavior Change Tactics) trial were used. The INSTINCT trial is a prospective, cluster-randomized, controlled trial evaluating a targeted behavioral intervention to increase appropriate use of tissue plasminogen activator in acute ischemic stroke. Individual EPs staffing each of the study hospitals were identified at baseline and 18 months. Surveys were sent to EPs at both intervals. Models were constructed to investigate relationships between physician/hospital characteristics and workforce change.ResultsA total of 278 EPs were identified at baseline. Surveys were sent to all EPs at baseline and 18 months with a response rate of 72% and 74%, respectively. At 18 months, 37 (15.8%) had left their baseline hospital and 66 (26.3%) new EPs were working. Seven EPs switched hospitals within the sample. The total number of EPs at 18 months was 307, a 10.8% overall increase. Among the 24 hospitals, 6 had no EP departures and 5 had no new arrivals. The median proportion of EP workforce departing by hospital was 16% (interquartile range [IQR] = 4%-25%; range = 0%-73%), and the median proportion added was 21% (IQR = 7%-41%; range = 0%-120%). None of the evaluated covariates investigating relationships between physician/hospital characteristics and workforce change were significant.ConclusionEP workforce changes over an 18-month period were common. This has implications for emergency department directors, researchers, and individual EPs. Those planning research involving interventions upon EPs should account for turnover as it may have an impact when designing clinical trials to improve performance on healthcare delivery metrics for time-sensitive medical conditions such as stroke, acute myocardial infarction, or trauma.

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