Funding for this research was provided by:
Received: 31 January 2020
Accepted: 5 April 2020
First Online: 23 April 2020
Ethics approval and consent to participate
: The ethical approval to apply the questionnaire was granted in August 2015 by the Regional Ethical Review Board Umeå (Drn:2015–190-31Ö). Written informed consent was obtained from each participant. All participants were 16 years old or older, which in Sweden is considered an age were young people can consent to participate in research without the need for consent from legal guardians.
: Not applicable
: The authors declare that they have no competing interests.