Funding for this research was provided by:
University of Gothenburg
Received: 28 May 2021
Accepted: 5 October 2021
First Online: 21 October 2021
: The study was approved by the Swedish Ethical Review Authority, Dnr: 2020–03046 and 2020–03922. Permissions to access the raw data from the Swedish Social Insurance Agency, the Swedish National Board of Health and Welfare, and Statistics Sweden were granted by each authority, respectively, upon ethical approval and prior to data retrieval. The data have been handled in pseudonymised form, with the code key kept by the registry holders. All methods/analyses were performed in accordance with the Declarations of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.