Rasmussen, Mette
Damsgaard, Mogens Trab
Morgen, Camilla Schmidt
Kierkegaard, Lene
Toftager, Mette
Rosenwein, Stine Vork
Krølner, Rikke Fredenslund
Due, Pernille
Holstein, Bjørn Evald
Funding for this research was provided by:
Nordea-fonden (02-2011-0122)
Sundhedsstyrelsen (1-1010-274/13)
Article History
Received: 16 November 2019
Revised: 16 January 2020
Accepted: 12 February 2020
First Online: 20 February 2020
Compliance with ethical standards
:
: The authors declare that there is no potential, perceived, or real conflict of interest.
: There is no formal agency for approval of questionnaire-based surveys in Denmark. Therefore, we asked the school board as the parents’ representative, the headmaster, and the students’ council in each of the participating schools to approve the study. The participants received oral and written information that participation was voluntary, and that data were treated confidentially. The study complies with national standards for data protection. From 2014 the Danish Data Protection Authority has requested notification of such studies and has granted acceptance for the 2014 survey (Case No. 2013-54-0576) and the 2018 survey (Case 10 622, University of Southern Denmark).