Received: 20 May 2022
Accepted: 5 January 2023
First Online: 11 January 2023
: The study was carried out in accordance with the Helsinki Declaration for biomedical research. The Magallanes region’s Health Ministry (Secretaría Regional de Salud de Magallanes y Antártica Chilena) gave its consent to this study (date of approval: 19.01.2018) and school directors gave permission to carry out the research on their campus. Parents of the interviewed children and interviewees themselves gave their written informed consent to participating in the study. Children gave their verbal informed consent. As no health-related data was collected, the approval of the Bern Cantonal Ethics Committee was not necessary according to the Swiss national regulations (Federal Act of 30 September 2011 on Research involving Human Beings, Switzerland).
: Not applicable.
: The authors declare that they have no competing interests.