Funding for this research was provided by:
Sophies Minde Foundation
Beitostølen Health Sports Center
Article History
Received: 28 June 2019
Accepted: 17 February 2020
First Online: 22 February 2020
Ethics approval and consent to participate
: The project was registered with and approved by the Norwegian Centre for Research Data (NSD) and received permission for implementation with reference number 51764. The project was also submitted to the Regional Committees for Medical and Health Research Ethics (REK) but was considered to be outside the remit of the Act on Medical and Health Research; it could therefore be implemented without the approval of the REK, with reference number 2016/1764.Prior to participating, potential participants received an information letter describing the study, its purpose, and that participation was voluntary. The letter also stated that they could withdraw their participation without giving any reason and that their contributions would be unidentifiable in the final report. Furthermore, the potential participants received information verbally over the phone in simple language after they had received the letters, and had the opportunity to ask questions if desired. The participants gave written consent to participate in the study. The consent form was approved by the NSD.
: Not applicable.
: The authors declare that they have no competing interests.