Funding for this research was provided by:
Economic and Social Research Council (#ES/J019119/1)
Academy of Finland (#1294514, (#287488 and #294096)
Received: 1 April 2019
Accepted: 1 November 2019
First Online: 14 November 2019
Ethics approval and consent to participate
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The Helsinki Health Study protocol has been approved by ethics committees of the Department of Public Health, University of Helsinki, and the City of Helsinki health authorities, Finland. City of Helsinki personnel register linkage data were used only for those who provided written informed consent for such linkage.
: Not applicable.
: The authors declare that they have no competing interests.