• Pablo Busca, Estibaliz Inchaurza, Aiora Illarramendi, Ohiana Urbina, Laura González, and Òscar Miró.
• Servicio de Urgencias, Hospital Donostia, San Sebastián, España.
• Emergencias. 2015 Jun 1; 27 (3): 143-149.

ObjectivesTo determine differences in certain variables reflecting clinical practice in a group of emergency physicians with varying levels of experience and to explore whether differences are associated with experience.Material And MethodsRetrospective observational study of differences in variables reflecting emergency physicians' practice between 2005 and 2012. We studied work variables (months worked, patients treated, caseload distribution according to triage levels), patient management variables (consultation with other specialists, admissions, ambulance requests), diagnostic procedures ordered (simple radiographs, laboratory tests, ultrasound or computed tomography imaging), and time patients discharged home spent in the department (arrival to discharge). We explored relationships between these variables and the emergency physician's experience using linear regression analysis, followed by the construction of multivariable models to adjust for physician characteristics.ResultsData for 50 emergency medicine physicians, in 291 years of work, were analyzed. The specialists' experience ranged from 1 to 22 years (mean [SD], 9.5 [5.8] years). They attended between 47 and 158 patients monthly (mean, 86 [19] patients). The physicians' experience was inversely and independently related to the mean number of patients attended monthly and the percentage of patients assigned a triage level of 1 or 2. Experience was directly and independently related to discharged patients' time spent in the emergency department and number of simple radiographs ordered. All associations were small (R2<0.010), however. Those variables continued to show statistically significant associations after increasingly complex modeling to adjust for the following physician variables: physician, age, sex, specialty, residency training in the same hospital).ConclusionThe practice of emergency physicians with more accumulated experience shows slight but significant differences from the practice of less experienced physicians.

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