Funding for this research was provided by:
Forskningsrådet för Arbetsliv och Socialvetenskap (2010-1828)
Received: 28 March 2018
Accepted: 6 March 2019
First Online: 28 March 2019
Ethics approval and consent to participate
: Not applicable. This study was conducted using de-identified and aggregated population data. No additional permission was required to obtain access to the data from each of the surveys and the national register.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.