• Deena Berkowitz, Joanna S Cohen, Nichole McCollum, Christina R Rojas, and James M Chamberlain.
• Division of Emergency Medicine, Children's National Hospital, Washington, DC, United States of America; The George Washington University School of Medicine and Health Sciences, Washington, DC, United States of America. Electronic address: dberkowitz@childrensnational.org.
• Am J Emerg Med. 2023 Dec 1; 74: 130134130-134.

BackgroundTriage, the initial assessment and sorting of patients in the Emergency Department (ED), determines priority of evaluation and treatment. Little is known about the impact of undertriage, the underestimation of disease severity at triage, on clinical care in pediatric ED patients. We evaluate the impact of undertriage on time to disposition and treatment decisions in pediatric ED patients.MethodsThis was a case control study of ED visits for patients <22 years of age, with an assigned Emergency Severity Index (ESI) score of 4 or 5, and associated hospital admission, nebulized treatment, supplemental oxygen, and/or intravenous (IV) line placement, between January 1, 2018, to June 30, 2022. Controls were sampled from a pool of patient visits with an ESI score of 3, matched by intervention, disposition, and date and hour of arrival. Primary outcome measures were time to order of intervention (nebulized treatment, oxygen administration, or IV placement) and time to disposition decision. A secondary outcome measure was return visits requiring admission or emergency intervention within 14 days of the index visit. Continuous variables (time to orders) were analyzed using Wilcoxon rank sum test and dichotomous outcomes (return visits) were compared using odds ratios with 95% confidence intervals. Analysis was performed with Python v3.10.ResultsThe final analysis included 7245 undertriaged patients. Undertriaged patients had longer times to orders for nebulized treatments, (p < 0.001) IV placement, (p < 0.001) and admission (p < 0.001) when compared to controls. There were no significant differences in time to supplemental oxygen delivery and time to discharge compared to controls. Undertriaged patients were more likely to experience a return visit requiring admission or emergency intervention (OR 3.74, 95% CI 3.32,4.22).ConclusionsUndertriage in the pediatric ED is associated with delays in care and disposition decisions and increases likelihood of return visits.Copyright © 2023 Elsevier Inc. All rights reserved.

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