• J Formos Med Assoc · Nov 2010

    Comparative Study

    Comparison between Canadian Triage and Acuity Scale and Taiwan Triage System in emergency departments.

    • Chip-Jin Ng, Kuang-Hung Hsu, Jen-Tze Kuan, Te-Fa Chiu, Wei-Kong Chen, Hung-Jung Lin, Michael J Bullard, and Jih-Chang Chen.
    • Department of Emergency Medicine, Chang Gung Memorial Hospital, Linkou, Chang Gung University College of Medicine, Taoyuan, Taiwan.
    • J Formos Med Assoc. 2010 Nov 1;109(11):828-37.

    Background/PurposeSince the implementation of National Health Insurance in Taiwan, Emergency Department (ED) volume has progressively increased, and the current triage system is insufficient and needs modification. This study compared the prioritization and resource utilization differences between the four-level Taiwan Triage System (TTS) and the standardized five-level Canadian Triage and Acuity Scale (CTAS) among ED patients.MethodsThis was a prospective observational study. All adult ED patients who presented to three different medical centers during the study period were included. Patients were independently triaged by the duty triage nurse using TTS, and a single trained research nurse using CTAS with a computer support software system. Hospitalization, length of stay (LOS), and medical resource consumption were analyzed by comparing TTS and CTAS by acuity levels.ResultsThere was significant disparity in patient prioritization between TTS and CTAS among the 1851 enrolled patients. With TTS, 7.8%, 46.1%, 45.9% and 0.2% were assigned to levels 1, 2, 3, and 4, respectively. With CTAS, 3.5%, 24.4%, 44.3%, 22.4% and 5.5% were assigned to levels 1, 2, 3, 4, and 5, respectively. The hospitalization rate, LOS, and medical resource consumption differed significantly between the two triage systems and correlated better with CTAS.ConclusionCTAS provided better discrimination for ED patient triage, and also showed greater validity when predicting hospitalization, LOS, and medical resource consumption. An accurate five-level triage scale appeared superior in predicting patient acuity and resource utilization.Copyright © 2010 Formosan Medical Association & Elsevier. Published by Elsevier B.V. All rights reserved.

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