Bringolf-Isler, Bettina
Hänggi, Johanna
Kayser, Bengt
Suggs, L Suzanne
de Hoogh, Kees
Dössegger, Alain
Probst-Hensch, Nicole
Funding for this research was provided by:
Federal Office of Sport (Grant No. 13-06 and Contract 0193 004 750, Grant No. 13-06 and Contract 0193 004 750)
Federal Office of Public Health (Grant No. 13.005223)
Health Promotion Switzerland (Grant No. 13.099 and 18.262, Grant No. 13.099 and 18.262)
Article History
Received: 22 April 2024
Accepted: 11 October 2024
First Online: 19 October 2024
Declarations
:
: The study protocol was approved by the research ethics committee of Nordwest- und Zentralschweiz (EKNZ) (147/13, 2018–01786 and 2018–00549). At baseline, one parent provided written informed consent for their children. Adolescents aged 12 years or older filled in an additional consent form. At follow-up for participants younger than 14 years written informed consent was provided by a parent as a proxy; for participants aged between 14 and 18 years, both parental and an own written informed consent was provided; for youth above 18 years only own written informed consent was given.
: Not applicable.
: The authors declare no competing interests.