• Yu-Che Chang, Chip-Jin Ng, Chang-Teng Wu, Li-Chin Chen, Jih-Chang Chen, and Kuang-Hung Hsu.
• Department of Emergency Medicine, Chang Gung Memorial Hospital and College of Medicine, Chang Gung University, Tao-Yuan, Taiwan; Department of Medical Education, Chang Gung Memorial Hospital and College of Medicine, Chang Gung University, Tao-Yuan, Taiwan.
• Am J Emerg Med. 2015 Jan 1;33(1):1-6.

BackgroundOvertriage has been observed among pediatric patients in emergency departments (EDs) under 5-level acuity pediatric triage systems. This study aimed to investigate the causes of overtriage and to provide suggestions for future amendments to such systems.MethodsThis study has a retrospective follow-up design in which 42000 pediatric patients who were admitted to the ED of the largest medical center in Taiwan between January and December of 2010 were recruited. The study variables included patient demographics, chief concerns, individual vital signs (ie, blood pressure, heart rate, body temperature, respiratory rate, and O2 saturation), triage level, ED final disposition, ED expenses, and total medical expenses. A logistic regression model was applied to explore the causes of overtriage and the effectiveness of a modified acuity system.ResultsApproximately 13.6% of the pediatric ED visits were upgraded to acuity level 1 based on vital signs that included heart rate (97.3%). The strength of the trend association (odds ratio) between decreasing acuity urgency (from levels 1 to 5) and hospitalization increased from 0.73 (95% confidence interval, 0.72-0.75) with the Pediatric Triage and Acuity System (Ped-TTAS) to 0.57 (95% confidence interval, 0.55-0.59) with the modified Ped-TTAS, which downgraded acuity levels by excluding the weighting of vital signs. Further validation was accomplished by comparing the trend association between decreasing acuity urgency and total medical expenses (Ped-TTAS: β = -0.13; modified Ped-TTAS: β = -0.18).ConclusionsHeart rate is prone to be affected by emotional responses among pediatric patients in certain specific age groups. Appropriate revisions of the pediatric triage system are suggested.Copyright © 2014 Elsevier Inc. All rights reserved.

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