Funding for this research was provided by:
Max-Planck-Gesellschaft (Not applicable)
Max Planck International Research Network on Aging (Not applicable)
European Research Council Starting Grant (336475)
Academy of Finland (1294861, 1308247)
Strategic Research Council (303615)
Horizon 2020 (667661)
Received: 25 October 2018
Accepted: 10 July 2019
First Online: 29 July 2019
Ethics approval and consent to participate
: The use of the data for research purposes and the waiver of informed consent from participants have been approved by the ethical committees of Statistics Finland (permission ‘TK-53-1519-09’) and the National Institute for Health and Welfare of Finland (permission ‘THL/231/5.05.00/2016’).
: As the data were collected for routine administrative registration purposes, informed consent for publication was not required.
: The authors declare that they have no competing interests.