• Diego Moreno-Blanco, Erik Alonso, Ancor Sanz-García, Elisabete Aramendi, Raúl López-Izquierdo, Rubén Perez García, Carlos Del Pozo Vegas, and Francisco Martín-Rodríguez.
• Department of Communications Engineering, University of the Basque Country (UPV/EHU), Bilbao, Spain; Biomedical Engineering and Telemedicine Centre, ETSI de Telecomunicación, Center for Biomedical Technology, Universidad Politécnica de Madrid, Madrid, Spain.
• Clin Med (Lond). 2024 May 1; 24 (3): 100208100208.

BackgroundThis study aimed to evaluate three prehospital early warning scores (EWSs): RTS, MGAP and MREMS, to predict short-term mortality in acute life-threatening trauma and injury/illness by comparing United States (US) and Spanish cohorts.MethodsA total of 8,854 patients, 8,598/256 survivors/nonsurvivors, comprised the unified cohort. Datasets were randomly divided into training and test sets. Training sets were used to analyse the discriminative power of the scores in terms of the area under the curve (AUC), and the score performance was assessed in the test set in terms of sensitivity (SE), specificity (SP), accuracy (ACC) and balanced accuracy (BAC).ResultsThe three scores showed great discriminative power with AUCs>0.90, and no significant differences between cohorts were found. In the test set, RTS/MREMS/MGAP showed SE/SP/ACC/BAC values of 86.0/89.9/89.6/87.1%, 91.0/86.9/87.5/88.5%, and 87.7/82.9/83.4/85.2%, respectively.ConclusionsAll EWSs showed excellent ability to predict the risk of short-term mortality, independent of the country.Copyright © 2024 The Author(s). Published by Elsevier Ltd.. All rights reserved.

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