Received: 7 June 2021
Accepted: 21 October 2021
First Online: 22 November 2021
: The study has been approved by The Research Ethics Board at Uppsala University, Sweden. As data of the study were obtained from the established national databases in Sweden, consent to participate and the experiment protocol were not required.
: Not applicable.
: Hans Garmo, Mieke Van Hemelrijck, Jan Adolfsson, Pär Stattin and Björn Zethelius do not have competing interests.