Funding for this research was provided by:
Kulttuurin ja Yhteiskunnan Tutkimuksen Toimikunta (310591)
Stanley Medical Research Institute
European Research Council (335905)
Received: 3 April 2020
Accepted: 24 September 2020
First Online: 16 November 2020
Ethics approval and consent to participate
: The Danish Data Protection Agency approved the study, with data access agreed by Statistics Denmark and the Danish Health Data Authority. Informed consent from cohort members was not required in this register-based study.
: Not applicable.
: We declare no competing interests.