Danner, Emmi
Sund, Reijo
Sintonen, Harri
Niuro, Laura
Niinikoski, Harri
Huopio, Hanna
Viikari, Liisa A.
Jääskeläinen, Jarmo
Article History
Received: 1 September 2023
Revised: 22 February 2024
Accepted: 2 March 2024
First Online: 2 April 2024
Competing interests
: H.S. declares that he is the developer of the 15D instrument and one of the developers of the 16D instrument. Other 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, patient consent is not required for register-based studies. However, for the regional study, informed consent was obtained from the patients and, if needed, their parents in accordance with the ethical principles stated in the Declaration of Helsinki.