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Authors
Kleppang, Annette Løvheim https://orcid.org/0000-0002-3844-4745
Hagquist, Curt
Stea, Tonje Holte
Leonhardt, Marja
Bonsaksen, Tore
Lien, Lars
Steigen, Anne Mari
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Funding
Funding for this research was provided by:
University of Inland Norway
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Article History
Received: 6 June 2025
Accepted: 2 September 2025
First Online: 31 October 2025
Declarations
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: The HUNT studies are approved by the Data Inspectorate of Norway and by the Regional Committee for Medical Research Ethics (reference 280749), and all information from HUNT is treated according to the guidelines of the Data Inspectorate. This study was performed in line with the principles of the Declaration of Helsinki. Participation was based on informed consent from participants aged 16 years or older. In accordance with Norwegian law, the parents of those younger than 16 years consented on behalf of their child.
: Not applicable.
: The authors declare no competing interests.
