Askeland, Kristin Gärtner http://orcid.org/0000-0003-2031-1052
Bøe, Tormod http://orcid.org/0000-0002-0968-7537
Sivertsen, Børge http://orcid.org/0000-0003-4654-9296
Linton, Steven J.
Heradstveit, Ove http://orcid.org/0000-0003-0243-4075
Nilsen, Sondre Aasen http://orcid.org/0000-0002-3179-1277
Hysing, Mari http://orcid.org/0000-0001-5303-8879
Funding for this research was provided by:
Stiftelsen Dam (2018/FO202170)
NORCE Norwegian Research Centre AS
Article History
Accepted: 10 April 2022
First Online: 6 May 2022
Declarations
:
: The authors have no relevant financial or non-financial interests to disclose. The study’s design and the project it is a part of was preregistered at ExternalRef removed. The analysis plan was not preregistered. We have no conflicts of interest to disclose.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The study and the linkage to the NUDB was approved by the Regional Committee for Medical and Health Research Ethics (REC) in Western Norway (014/326/REK vest).
: Informed consent was obtained from all individual participants included in the study.