Renneberg, Camilla Klinge http://orcid.org/0000-0002-8588-7637
Brund, René Børge Korsgaard http://orcid.org/0000-0002-7246-4811
Heuckendorff, Signe http://orcid.org/0000-0002-4074-064X
Bech, Bodil Hammer http://orcid.org/0000-0002-0287-3687
Fonager, Kirsten http://orcid.org/0000-0001-9641-992X
Funding for this research was provided by:
Helsefonden (22-B-0173)
Article History
Received: 16 February 2023
Accepted: 19 April 2023
First Online: 3 May 2023
Declarations
:
: The STROBE guidelines were applied for the reporting of this study and all methods were performed according to relevant regulations and guidelines, including the 1975 Declaration of Helsinki. This project fulfils The Act on Processing of Personal Data in Denmark (Act No. 429 of May 31, 2000), which obeys the European Union Directive 95/46/EC on the protection of human individuals. The data usage and project were approved by the Danish Data Protection Agency (Region North of Denmark – Approval number 2019–2078). Furthermore, the legal and ethical parts of the study were approved by Statistics Denmark (account number 707196). All data was acquired from already existing administrative national registries and Statistics Denmark conducted the anonymity of data before researchers gained access. The paper of this study solely includes aggregated results and no personal data. This study is register-based and according to Danish Law (available at: ExternalRef removed), register-based studies require neither approval by ethical or scientific committees nor written informed consent and therefore no requirement of informed consent (neither oral nor written) from parents/guardians of minors included in this study is needed.
: Not applicable.
: The authors declare that they have no competing of interests.