Opdal, Ida Marie
Larsen, Lill Sverresdatter
Hopstock, Laila Arnesdatter
Schirmer, Henrik
Lorem, Geir Fagerjord
Article History
Received: 5 December 2019
Accepted: 8 April 2020
First Online: 28 April 2020
Change Date: 12 May 2021
Change Type: Correction
Change Details: A Correction to this paper has been published:
Change Details: https://doi.org/10.1186/s12889-021-10840-7
Ethics approval and consent to participate
: The Norwegian Data Inspectorate and the Regional Committee for Medical and Health Research Ethics for Northern Norway (REK-Nord) approved the Tromsø Study, and all procedures were performed according to the 1964 Helsinki declaration and its later amendments. The Tromsø Study collected written informed consent from participants. The publication committee from The Tromsø Study has preapproved this project.
: Not applicable.
: The authors declare that they have no competing interests.