Updates are available Correction dated 2026-02-12
Click to view Correction: https://doi.org/10.1186/s12877-026-07053-1
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Authors
Teigland, Tonje
Igland, Jannicke
Blytt, Kjersti M.
Haltbakk, Johannes
Birkeland, Kåre I.
Østbye, Truls
Kirkevold, Marit
Iversen, Marjolein M.
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Funding
Funding for this research was provided by:
Western Norway University Of Applied Sciences
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Article History
Received: 4 July 2025
Accepted: 24 October 2025
First Online: 5 December 2025
Change Date: 8 January 2026
Change Type: Update
Change Details: The original online version of this article was revised: 1) The 'Statistical Analysis' section was mistakenly placed at the beginning of the Methods; 2) In Table 2 several confidence intervals are displayed on a separate line below the corresponding estimates, rather than on the same line.
Change Date: 12 February 2026
Change Type: Correction
Change Details: A Correction to this paper has been published:
Change Details: https://doi.org/10.1186/s12877-026-07053-1
Declarations
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: This research project was conducted in accordance with the Helsinki Declaration. The project received exemption from informed consent from the Regional Committee for Medical and Health Research Ethics, REC North (2014/687). The need for ethical approval was waived by the Regional Committee for Medical and Health Research Ethics, REC North (2014/687). Permissions to use and merge data were obtained from the Norwegian Centre for Research Data (15/01493), the Norwegian Directorate of Health and the Norwegian Institute of Public Health. Statistics Norway merged the data files and de-identified the final data file.
: Not applicable.
: KIB has received grants to his institution for lectures and consulting for Novo Nordisk, Eli Lilly, Astra Zeneca, Boehringer Ingelheim, Roche. The other authors have no relevant competing interest to disclose.
