Hynek, Kamila Angelika http://orcid.org/0000-0002-4987-4441
Abebe, Dawit Shawel http://orcid.org/0000-0002-5184-0478
Liefbroer, Aart C. http://orcid.org/0000-0002-7884-3150
Hauge, Lars Johan http://orcid.org/0000-0002-6934-2274
Straiton, Melanie Lindsay http://orcid.org/0000-0001-6453-8051
Funding for this research was provided by:
Norges Forskningsråd (273262/H10, 273262/H10, 273262/H10)
Article History
Received: 28 February 2022
Accepted: 16 June 2022
First Online: 27 June 2022
Declarations
:
: The authors declare that all procedures contributing to this work have been performed in accordance with the ethical standards of the relevant national and institutional committees on human experimentation and with the Helsinki Declaration of 1975, as revised in 2008. Ethical approval was obtained from the Regional Committee for Medical and Health Research Ethics, South East Norway (REK 2014/1970) and all registry owners approved utilisation of their data. Consent to participate was waived by the Regional Committee for Medical and Health Research Ethics, Southeast Norway as this study uses already existing administrative data that were identified before being issued.
: Not applicable.
: The data that support the findings of this study are available from Statistics Norway and HELFO but restrictions apply to the availability of these data, which were used under license for the current study, and so are not publicly available. Data are however available from Statistics Norway and HELFO if ethical approval is granted. Requests to access these datasets should be directed to Statistics Norway (ExternalRef removed) and HELFO (ExternalRef removed).
: The authors declare that they have no competing interests.