Funding for this research was provided by:
Received: 15 June 2020
Accepted: 21 December 2020
First Online: 7 January 2021
Ethics approval and consent to participate
: No administrative permission was required to access the raw data, as the study was based on aggregated, open access data. Ethical approval of manuscripts before submission is not required by Nykøbing Falster Hospital, neither by Region Zealand to which the hospital belongs, neither by the University of Copenhagen where the senior author, Elsebeth Lynge, is employed as professor.
: Not applicable.
: The authors declare that they have no competing interests.