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Background: The helicopter emergency services (HEMS) Benefit Score (HBS) is a nine-level scoring system developed to evaluate the benefits of HEMS missions. The HBS has been in clinical use for two decades in its original form. Advances in prehospital care, however, have produced demand for a revision of the HBS. Therefore, we developed the emergency medical services (EMS) Benefit Score (EBS) based on the former HBS. As reflected by its name, the aim of the EBS is to measure the benefits produced by the whole EMS systems to patients. Methods: This is a four-round, web-based, international Delphi consensus study with a consensus definition made by experts from seven countries. Participants reviewed items of the revised HBS on a 5-point Likert scale. A content validity index (CVI) was calculated, and agreement was defined as a 70% CVI. Study included experts from seven European countries. Of these, 18 were prehospital expert panellists and 11 were in-hospital commentary board members. Results: The first Delphi round resulted in 1248 intervention examples divided into ten diagnostic categories. After removing overlapping examples, 413 interventions were included in the second Delphi round, which resulted in 38 examples divided into HBS categories 3–8. In the third Delphi round, these resulted in 37 prehospital interventions, examples of which were given revised version of the score. In the fourth and final Delphi round, the expert panel was given an opportunity to accept or comment on the revised scoring system. Conclusions: The former HBS was revised by a Delphi methodology and EBS developed to represent its structural purpose better. The EBS includes 37 exemplar prehospital interventions to guide its clinical use. Collaboration Group Andreas Krüger, Fabrice Dami, Didier Moens, Espen Fevang, Heini Harve-Rytsälä, Helena Jäntti, Jouni Nurmi, Kristin Tønsager, Leif Rognås, Marius Rehn, Patrick Schober, Per P. Bredmose, Peter Martin Hansen, Peter Temesvari, Søren Mikkelsen, Thomas W. Lindner, Troels Martin Hansen, Anna Nikula, Anne-Mari Kantanen, Antti E. Lindgren, Heli Salmi, Karri Kirjasuo, Marjut Varpula, Matti Reinikainen, Nanneli Paalasmaa, Outi Peltoniemi, Teemu Luoto, Vesa Lund & Ville Jalkanen |
