• Francisco Martín-Rodríguez, Raúl López-Izquierdo, Carlos Del Pozo Vegas, Irene Sánchez-Soberón, Juan F Delgado-Benito, José Luis Martín-Conty, and Miguel A Castro-Villamor.
• Advanced Clinical Simulation Center, Faculty of Medicine, Universidad de Valladolid, Avda. Ramón y Cajal, 7, 47005 Valladolid, Spain; Advanced Medical Life Support, Emergency Medical Services (SACYL), P° Hospital Militar, 24, 47007 Valladolid, Spain. Electronic address: fmartin@saludcastillayleon.es.
• Heart Lung. 2020 Sep 1; 49 (5): 585-591.

BackgroundThe National Early Warning Score 2 (NEWS2) scores can help identify clinical deterioration.ObjectiveTo assess the predictive capacity of the NEWS2 at prehospital level for the detection of early mortality in the hospital.MethodsProspective multicenter cohort study, in which we compiled a database of observed vital signs between March 1, 2018 and May 30, 2019. We collected demographic data, vital signs (respiration rate, oxygen saturation, supplemental oxygen, temperature, systolic blood pressure, heart rate and level of consciousness), prehospital diagnosis and hospital mortality data. We calculated the AUROC of the NEWS2 for early mortality.ResultsWe included a total of 2335 participants. Median age was 69 years (IQR 54-81 years). The AUC for mortality within one day was 0.862 (95%CI:0.78-0.93), within two days 0.885 (95%CI:0.84-0.92) and within seven days 0.835 (95%CI:0.79-0.87) (in all cases, p<0.001).ConclusionsThe NEWS2 performed at prehospital level is a bedside tool for predicting early hospital mortality.Copyright © 2020 Elsevier Inc. All rights reserved.

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