Lidwall, Ulrik http://orcid.org/0000-0001-7259-7166
Funding for this research was provided by:
Karolinska Institute
Article History
Received: 31 August 2020
Accepted: 14 February 2021
First Online: 29 March 2021
Declarations
:
: The author declares no conflict of interest.
: Since only register data were used no informed consent was required from participants. The Swedish Social Insurance Agency (SSIA) is the Government authority in Sweden responsible for social insurance statistics and the author is a senior research officer at the Statistics Department at the SSIA. The current register data are stored and processed under strict secrecy in accordance with Swedish law on official statistics (CitationRef removed:99) and the data can only be used for production of social insurance statistics or research within the SSIA.