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Authors
Rand, Kim http://orcid.org/0000-0001-7692-4099
Arnevik, Espen Ajo http://orcid.org/0000-0003-1071-0017
Walderhaug, Espen http://orcid.org/0000-0002-0115-9596
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Funding
Funding for this research was provided by:
EuroQol Research Foundation (2015270)
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Article History
Received: 27 March 2020
Accepted: 22 September 2020
First Online: 9 November 2020
Ethics approval and consent to participate
: Collection of data from patients reported in this paper were approved by the Norwegian Data Protection Official for Research (10/01172–2), the Norwegian Regional Committees for Medical Research Ethics, south-eastern region B; 2017/1536, and the Oslo University Hospital Data Protection Official; 2017/15842. All patient participants signed a written informed consent.The general population data was collected in a parallel postal and web-based survey of the Norwegian population between May 10th and June 22nd 2010. The study was designed to provide a representative sample of the adult Norwegian population in terms of age, sex, and educational level. The study was considered outside the jurisdiction of the Regional Committee for Medical Health Research Ethics, and ethical approval was obtained from the Data Protection Official at Akershus University Hospital April 27th 2010. Further detail can be obtained in [CitationRef removed].
: Not applicable.
: KR is a member of the EuroQol Group, a not-for-profit research foundation which develops, owns, and licenses the EQ-5D. The EuroQol Group has no involvement with the study beyond funding. No other competing interests.
