Funding for this research was provided by:
Norwegian Nurses Organisation
The Norwegian Directorate of Health
Text and Data Mining valid from 2018-04-04
Received: 20 January 2017
Accepted: 15 March 2018
First Online: 4 April 2018
Change Date: 14 May 2018
Change Type: Correction
Change Details: Correction to: BMC Public Health (2018) 18: 448. ExternalRef removed. In the original version of this article , published on 4 April 2018, there was 1 incorrect author family name. The redundant affiliation (5) has also been removed. The original article has been updated.
Ethics approval and consent to participate
: The study was approved by the Norwegian Regional Committee for Medical and Health Research Ethics (REC no. 2010/2978A, REK sør-øst). The adolescents and their legal parents/guardians gave signed consent for participation in the study as a whole, including the interviews. Information about the study, potential harms and benefits, the purpose of the study and the right to withdraw were emphasized, both in the written material and directly to the adolescents before the interviews started. Anonymity and confidentiality on the audio-recordings and the transcripts were secured by using subject identifier codes instead of names.
: Not applicable.
: The authors declare that they have no competing interests.
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