Danner, Emmi
Niuro, Laura
Huopio, Hanna
Niinikoski, Harri
Viikari, Liisa
Kero, Jukka
Jääskeläinen, Jarmo
Article History
Received: 26 January 2022
Revised: 22 April 2022
Accepted: 8 May 2022
First Online: 3 June 2022
Competing interests
: The authors declare no competing interests.
: The Finnish Institute for Health and Welfare, the Social Insurance Institution of Finland, and Statistics Finland granted permission for this study. The study was approved by the Ethics Committee of the Northern Savo Hospital District. According to Finnish legislation, no patient consent is required for register-based study.