Funding for this research was provided by:
Jane ja Aatos Erkon Säätiö (T59127)
The Cancer Foundation of Finland (T59129)
Finnish Government Research Funds (K77729)
Text and Data Mining valid from 2018-07-28
Received: 8 March 2018
Accepted: 18 July 2018
First Online: 28 July 2018
Ethics approval and consent to participate
: According to Finnish legislation, no separate ethical approval or informed consent is needed for studies that utilise only administrative registers. However, ethical approval was obtained for the FinDM study from the research ethics committee of National Institute of Health and Welfare (30.1.2014, meeting 1/2014, §609). Permissions to use data were obtained from the maintainers of original registers (National Institute for Health and Welfare, Social Insurance Institution, Statistics Finland).
: Not applicable.
: MM started working in Orion Corporation after this study was designed and the results were analysed. Orion Corporation had no role in study design, the collection, analysis and interpretation of data, in the writing of the report or in the decision to submit the article for publication. EU, AH, MA, RS, PI-P, RA, JK, UP, MH and EL declare that they have no competing interests.
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