• Olivier Grosgurin, Angèle Gayet-Ageron, Laurent Suppan, Josette Simon, Adolfo Villar, Véronique Trombert, Christophe Marti, François P Sarasin, and Olivier T Rutschmann.
• Department of Community, Primary Care and Emergency Medicine, Division of Emergency Medicine.
• Eur J Emerg Med. 2019 Jun 1; 26 (3): 188-193.

ObjectivesNo general emergency department triage scale has been evaluated for prehospital triage. The objective of this study was to evaluate the reliability and the performance of the Swiss Emergency Triage Scale (SETS) used by paramedics to determine the emergency level and orientation of simulated patients.Patients And MethodsIn a prospective cross-sectional study, 23 paramedics evaluated 28 clinical scenarios with the SETS using interactive computerized triage software simulating real-life triage. The primary outcome was inter-rater reliability regarding the triage level among participants measured by intraclass correlation coefficient (ICC). Secondary outcomes were the accuracy of triage level and the reliability and accuracy of orientation of patients of at least 75 years to a dedicated geriatric emergency centre.ResultsTwenty-three paramedics completed the evaluation of the 28 scenarios (644 triage decisions). Overall, ICC for triage level was 0.84 (95% confidence interval: 0.77-0.99). Correct emergency level was assigned in 89% of cases, overtriage rate was 4.8%, and undertriage was 6.2%. ICC regarding orientation in the subgroup of simulated patients of at least 75 years was 0.76 (95% confidence interval: 0.61-0.89), with 93% correct orientation.ConclusionReliability of paramedics rating simulated emergency situations using the SETS was excellent, and the accuracy of their rating was very high. This suggests that in Switzerland, the SETS could be safely used in the prehospital setting by paramedics to determine the level of emergency and guide patients to the most appropriate hospital.

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