Document is current

Article History

Received: 7 January 2026

Accepted: 31 March 2026

First Online: 10 April 2026

Declarations

:

: All procedures complied with institutional and national ethical standards and the Helsinki Declaration. Parents and adolescents were informed about the study and the voluntary nature of participation. Adolescents who completed the questionnaire thereby provided informed consent. The study was conducted under GDPR Article 6(1)(e) and Section 10 of the Danish Data Protection Act. It was approved by the Centre for Suicide Research (protocol j.nr. 2021.01). In Denmark, questionnaire-based studies fall outside the scope of the Danish Act on Research Ethics Review of Health Research Projects (Komitéloven, LBK nr. 1268 af 28/11/2024) and therefore do not require ethical committee approval.

: Not applicable, as no identifiable personal data are included and no individual-level consent for publication is required.

: The authors declare no competing interests.