Pelkonen, Anna-Maria http://orcid.org/0009-0001-7930-1273
Rajavaara, Päivi http://orcid.org/0000-0002-4863-4059
Vähänikkilä, Hannu http://orcid.org/0000-0002-2026-9379
Anttonen, Vuokko http://orcid.org/0000-0002-3804-1858
Laitala, Marja-Liisa http://orcid.org/0000-0001-7323-9862
Funding for this research was provided by:
University of Oulu
Article History
Received: 20 June 2024
Accepted: 5 September 2024
First Online: 14 September 2024
Declarations
:
: According to Finnish legislation (Data Protection Act 1050/2018), a statement from the regional medical research ethics committee of the Wellbeing Services County of North Ostrobothnia was not required. Permission for the study was obtained from the register holder, the City of Oulu (Nov 19, 2021, registration authorization number OUKA/12798/07.01.04.02/2021).
: Separate consents to participate and publish were not needed in this register-based study.
: The authors declare no competing interests.