Vestergaard, Anne Høy Seemann http://orcid.org/0000-0002-5140-1803
Ehlers, Lars Holger http://orcid.org/0000-0002-9521-9931
Neergaard, Mette Asbjoern http://orcid.org/0000-0003-3309-5838
Christiansen, Christian Fynbo http://orcid.org/0000-0002-0727-953X
Valentin, Jan Brink http://orcid.org/0000-0002-8205-7179
Johnsen, Søren Paaske http://orcid.org/0000-0002-2787-0271
Funding for this research was provided by:
Danmarks Frie Forskningsfond (4004-00609B)
Fonden af 1870 (200652)
C.C. Klestrup & Hustru Henriette Klestrups Mindelegat (10761)
Fabrikant Einar Willumsens Mindelegat (131217)
Helga og Peter Kornings Fond (472123-002-40)
Article History
Accepted: 6 July 2023
First Online: 8 August 2023
Declarations
:
: The present study was supported by the Independent Research Fund Denmark (grant number 4004-00609B), Fonden af 1870 (grant number 200652), C.C. Klestrup & Hustru Henriette Klestrups Mindelegat (grant number 10761), Fabrikant Einar Willumsens Mindelegat (grant number 131 217) and Helga og Peter Kornings Fond (grant number 472123-002-40). The sponsors had no involvement in either stages of the work.
: The authors have no conflicts of interest to declare.
: All data sources can be obtained from Statistics Denmark, the central authority for Danish statistics.
: Under Danish law, approvals from ethics committees and consent from patients are not required when conducting observational studies. An approval was obtained for use of the included data sources from the Danish Data Protection Agency (record number 2015-57-0002) by registration at Aarhus University (Aarhus University record number 2016-051-000001/977).
: Not applicable
: Not applicable
: Available from the corresponding author upon request.
: Anne Høy Seemann Vestergaard (AHSV), Lars Holger Ehlers (LHL), Mette Asbjoern Neergaard (MAN), Christian Fynbo Christiansen (CFC), Jan Brink Valentin (JBV) and Søren Paaske Johnsen (SPJ) contributed to the conception and design of the study. Acquisition of data was done by AHSV, CFC and SPJ. AHSV performed the statistical analysis with assistance from JBV. The first draft of the manuscript was written by AHSV and all authors commented on previous versions of the manuscript. All authors read and approved the final version of the manuscript.