• Rebekah Mannix, William P Meehan, Michael C Monuteaux, and Richard G Bachur.
• Department of Medicine, Children's Hospital Boston, Boston, MA, USA. Rebekah.Mannix@childrens.harvard.edu
• J. Pediatr. 2012 Jan 1;160(1):136-9.e1.

ObjectivesTo investigate the variation and trends in neuroimaging in children examined for minor head injury at major US pediatric emergency departments.Study DesignWe conducted a retrospective study of children <19 years of age with mild head injury who were examined and discharged home from the emergency department at 40 pediatric hospitals from 2005 to 2009 by using the Pediatric Health Information Systems database. Variation in computed tomography (CT) rates between hospitals was assessed for correlation with hospital-specific rates of intracranial hemorrhage, admission, and return visits. Age-adjusted trends in CT use were calculated for the 5 years.ResultsIn the 5 years, the median rate of imaging for minor head injured patients was 36% (IQR, 29%-42%; range, 19%-58%). There was no correlation between institution-specific rates of CT imaging and intracranial hemorrhage, admission, or return-visit rates. Age-adjusted rates of CT use decreased in the 5-year period (OR, 0.94; 95% CI, 0.92-0.97; P < .001).ConclusionsIn this study, we found significant practice variation in CT use at pediatric hospitals examining children with minor head injury. These data may help guide national benchmarks for the appropriate use of CT imaging in pediatric patients with minor head injury.Copyright © 2012 Mosby, Inc. All rights reserved.

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