Horsager, Christina http://orcid.org/0000-0002-6304-361X
Færk, Emil
Gearhardt, Ashley N.
Lauritsen, Marlene Briciet
Østergaard, Søren Dinesen
Funding for this research was provided by:
Central Denmark Region Fund for Strengthening of Health Science (1-36-72-4-20)
Danish Agency for Science and Higher Education (2020-6720)
Beckett-Fonden (17-0-0822)
Fonden til Lægevidenskabens Fremme (17-L-0013)
Novo Nordisk Fonden (NNF20SA0062874)
Lundbeckfonden (R358-2020-2341, R344-2020-1073)
Kræftens Bekæmpelse (R283-A16461)
Danmarks Frie Forskningsfond (7016-00048B)
Article History
Received: 19 February 2021
Accepted: 8 May 2021
First Online: 5 June 2021
Declarations
:
: Dr. Østergaard received the 2020 Lundbeck Foundation Young Investigator Prize. The remaining authors declare no conflicts of interest.
: This study was performed in accordance with the principles of the Declaration of Helsinki. Ethical Review Board approval is not required for survey and register-based studies in Denmark if they do not include collection of biological material. The questionnaire and survey methodology was approved by the Danish Health Data Authority. The use of data from the Danish registers was approved by Statistics Denmark and the Danish Health Data Authority. Data obtained from the survey and data from the Danish registers were de-identified by Statistics Denmark. The project was registered with record number 2008-58-0028 at the Danish Data Protection Agency.
: The included adolescents were invited via their parents (legal guardians) to ensure that the parents were informed on the purpose of the study. This procedure ensured that the parents were able to decide whether their child should have the opportunity to participate in the survey, and to provide informed consent. Furthermore, the parents were informed that participation in the survey was voluntary, and that the consent to participate could be withdrawn at any time.
: The adolescents were invited via their parents (legal guardians) to ensure that the parents were informed on the purpose of the study. This procedure ensured that the parents were able to help decide whether their child should have the opportunity to participate in the survey. Furthermore, the invitees were informed that survey participation was voluntary and that their consent to participate could be withdrawn at any time.