Standardised data collection in prehospital critical care: a comparison of medical problem categories and discharge diagnoses.

"Declarations Ethics approval and consent to participateWe requested and were granted permission to conduct this study from each participating hospital district (Oulu University Hospital 200/2019 2.7.2019, Helsinki University Hospital HUS/280/2019 9.7.2019, Turku University Hospital J30/19 4.8.2019, Hospital District of Lapland 32/2019 22.8.2019, Kuopio University Hospital RPL 102/2019 22.8.2019, Tampere University Hospital RTL-R19580 2.9.2019). Ethical permission, although not necessary for observational studies, was granted by the Ethical Board of the University of Helsinki (HUS/3115/2019 §194 27.11.2019). The Finnish Institute for Health and Welfare granted permission to the HILMO data (Dnro THL/2231/5.05.00/2019 21.2.2020) The study was purely observational and did not affect patient treatment in any way. Thus, patient consent was not required according to Finnish legislation, nor was it sought. Consent for publicationNot applicable. Competing interestsThe authors declare that they have no competing interests. Competing interests The authors declare that they have no competing interests."

"Funding This work was supported by FinnHEMS Research and Development Unit and Helsinki University Hospital (state funding, VTR TYH2019243)."