Physician Variability in Management of Emergency Department Patients with Chest Pain
Abstract
Introduction: Chest pain is a common emergency department (ED) presentation accounting for 8-10million visits per year in the United States. Physician-level factors such as risk tolerance are predictive ofadmission rates. The recent advent of accelerated diagnostic pathways and ED observation units mayhave an impact in reducing variation in admission rates on the individual physician level.
Methods: We conducted a single-institution retrospective observational study of ED patients with adiagnosis of chest pain as determined by diagnostic code from our hospital administrative database.We included ED visits from 2012 and 2013. Patients with an elevated troponin or an electrocardiogram(ECG) demonstrating an ST elevation myocardial infarction were excluded. Patients were divided into twogroups: “admission” (this included observation and inpatients) and “discharged.” We stratified physiciansby age, gender, residency location, and years since medical school. We controlled for patient- andhospital-related factors including age, gender, race, insurance status, daily ED volume, and lab values.
Results: Of 4,577 patients with documented dispositions, 3,252 (70.9%) were either admitted to thehospital or into observation (in an ED observation unit or in the hospital), while 1,333 (29.1%) weredischarged. Median number of patients per physician was 132 (interquartile range 89-172). Averageadmission rate was 73.7±9.5% ranging from 54% to 96%. Of the 3,252 admissions, 2,638 (81.1%) wereto observation. There was significant variation in the admission rate at the individual physician level withadjusted odds ratio ranging from 0.42 to 5.8 as compared to the average admission. Among physicians’characteristics, years elapsed since finishing medical school demonstrated a trend towards associationwith a higher admission probability.
Conclusion: There is substantial variation among physicians in the management of patients presentingwith chest pain, with physician experience playing a role.