Funding for this research was provided by:
Forskningsrådet om Hälsa, Arbetsliv och Välfärd (2019-01284)
AFA Försäkring (160138)
Vetenskapsrådet (2016-02134, 2017-00624, 2017-00641)
Received: 11 January 2021
Accepted: 22 March 2021
First Online: 7 April 2021
: The ethical vetting was performed and approved by the Regional Ethical Review Board of Stockholm, Sweden (Dnr: 2007/524–31, 2010/1346–32/5, 2014/311–32, 2015/1809–32, 2017/128–32). The Regional Ethical Review Board can waive the requirement to consult in these type of large register studies, and for this project stated that the consent to participate was not applicable.
: Not applicable.
: None declared