Stavnes, Kristin
Ruud, Torleif
Benth, Jūratė Šaltytė
Hanssen-Bauer, Ketil
Weimand, Bente M.
Solantaus, Tytti
Hilsen, Marit
Skogøy, Bjørg Eva
Kallander, Ellen Katrine
Kufås, Elin
Peck, Gro Christensen
Birkeland, Bente
Hagen, Kristine Amlund
Article History
Received: 9 April 2021
Accepted: 17 June 2022
First Online: 19 September 2022
Declarations
:
: The study was approved by the Regional Committee on Medical and Health Research Ethics South-East (reg.no. 2012/1176) and by the privacy ombudsman. The authors confirm that all methods were performed in accordance with the relevant guidelines and regulations. Participants were informed about the study by a project staff member, and also received a written information letter. Participants gave written informed consent to participate before responding to questionnaires. Parents agreed for themselves and for their children, and children, even if not formally required, gave written consents for themselves.
: Not applicable.
: One co-author, Torleif Ruud, is a member of the editorial board of this journal (BMC). The decision to submit this article to this journal was transparent and the other participating authors claim to have no competing interests.