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Authors
Hetlevik, Øystein https://orcid.org/0000-0001-8912-3426
Wensaas, Knut-Arne https://orcid.org/0000-0001-9113-7843
Baste, Valborg https://orcid.org/0000-0001-6640-9747
Emberland, Knut Erik https://orcid.org/0000-0002-1635-7894
Özgümüs, Türküler https://orcid.org/0000-0003-2353-8869
Håberg, Siri Eldevik https://orcid.org/0000-0002-2199-5225
Rortveit, Guri https://orcid.org/0000-0002-0389-2169
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Funding
Funding for this research was provided by:
University of Bergen
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Article History
Received: 5 July 2023
Accepted: 18 October 2023
First Online: 25 October 2023
Declarations
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: This study was approved by the national research ethics authorities through the Regional Committee for Medical and Health Research Ethics Western Norway (REK West) with the reference number 135576. All procedures involving human participants were conducted in accordance with the ethical standards of the responsible institutional and/or National Research Committee and with the tenets of the 1964 Helsinki Declaration and its later amendments and comparable ethical standards. The informed consent was waived by the Regional Committee for Medical and Health Research Ethics Western Norway (REK West), ref. nr 135576, because of the nature of the study using data reported to national registers and that the data were handled so the welfare and integrity of the participant were safeguarded. The data were de-identified by register owners using a project-specific ID for this study and made available for this study without possibility to identify any individuals. The use of data from the registries was also approved by the register owners: The Directorate of Health, The Norwegian Institute of Public Health, and Statistics Norway.
: Not applicable.
: The authors declare no competing interests.
