Article History
Received: 7 October 2019
Accepted: 10 January 2020
First Online: 30 January 2020
Ethics approval and consent to participate
: The study was approved by the central ethical review board, Gothenburg, Sweden, Dnr: 970–15. This is a study in which data were prospectively recorded by the health-care providers in the ambulance. All patients and/or relatives were asked whether their identity should remain confidential before being reported in the ambulance patient data records. The patients who asked that his/her data remain confidential were not included in the retrospective analysis. However, informed consent was not obtained from the patients for our retrospective analysis of their data. This is generally not recommended by Ethical Review Boards in Sweden for the following reasons: OrderedList removed
: Not applicable.
: The authors declare that they have no competing interests.