Ethics approval
This study was approved on 17 December 2020 by the Ethical Committee of
the Foundation University Institute for Research in Primary Health Care
Jordi Gol i Gurina (IDIAPJGol) (code 20/192-PCV). All procedures
performed in studies involving human participants were in accordance
with the ethical standards of the institutional and/or national research
committee and with the 1964 Helsinki Declaration and its later
amendments or comparable ethical standards.
Consent to participate
Informed consent providing information about anonymity, confidentiality,
use of the collected data, risks, and general information about the
study, was signed for parents or guardians of the participants because
all they were children under 16 years old. Participants were free to
decline/withdraw consent at any time without providing a reason and
without being subject to any resulting detriment.