Received: 13 February 2019
Accepted: 25 July 2019
First Online: 23 August 2019
Ethics approval and consent to participate
: Study information, both oral and written, was given to participants and their next of kin. Written informed consent was required from both the participant and their next of kin before the interviews were conducted. For participants who were unable to give consent, their closest family proxy gave informed consent on behalf of their next of kin. The Regional Committee for Medical and Health Research Ethics for Eastern Norway (S-08111b), the Norwegian Social Science Data Services (NSD) (07–2008SI), and the Directorate for Health and Social Affairs (08/2984) approved this study.
: Not applicable.
: The authors declare that they have no competing interests.