• Yi-Syun Huang, Yuan-Jhen Syue, Yung-Lin Yen, Chien-Hung Wu, Yu-Ni Ho, and Fu-Jen Cheng.
• Department of Emergency Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Niaosong Township, Kaohsiung County, Taiwan.
• J Emerg Med. 2016 Nov 1; 51 (5): 564-571.e1.

BackgroundHeadaches are one of the most common afflictions in adults and reasons for emergency department (ED) visits.ObjectiveWe sought to determine the association between physician risk tolerance and head computed tomography (CT) use in patients with headaches in the ED.MethodsWe performed a retrospective study of patients with nontraumatic isolated headaches in the ED and then administered two instruments (Risk-Taking subscale [RTS] of the Jackson Personality Index and a Malpractice Fear Scale [MFS]) to attending physicians who had evaluated these patients and made decisions regarding head CT scans. Outcomes were head CT use during ED evaluation and hospital admission. A hierarchical logistic regression was used to determine the effect of risk scales on head CT use.ResultsOf the 1328 patients with headaches, 521 (39.2%) received brain CTs and 83 (6.9%) were admitted; 33 (2.5%) patients received a final diagnosis that the central nervous system was the origin of the disease. Among the 17 emergency physicians (EPs), the median of the MFS and RTS was 23 (interquartile range [IQR] 19-25) and 21 (IQR 20-23), respectively. EPs who were relatively risk-averse and those who possessed a higher level of malpractice fear were not more likely to order brain CTs for patients with isolated headaches.ConclusionsIndividual EP risk tolerance, as measured by RTS, and malpractice concerns, measured by MFS, were not predictive of CT use in patients with isolated headaches.Copyright © 2016 Elsevier Inc. All rights reserved.

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