Multiple behavioral risk factors for non-communicable diseases among the adolescent population in Brazil: the analysis derived from the Brazilian national survey of school health 2019.

"Declarations Ethics approval and consent to participatePeNSE was approved by the Brazilian Ministry of Health’s National Research Ethics Committee for Human Beings, and informed consent was obtained from all participants and their legal guardian. Students who agreed to the Free and Informed Consent Form (TCLE), displayed on the first page of the application, participated in the research. The questionnaire’s opening was conditional upon the registration of this agreement. The research did not pose any risks to the students’ health, but sensitivity to the investigated issues was considered. The research was approved through Opinion Conep no. 3,249,268, dated 04/08/2019, following contact with State Secretariats, Municipal Education Departments, and school management. Measures were taken to protect teenagers and ensure their comfort. Participation was voluntary, and students had the option to abstain from answering any question or abandon the questionnaire at any point. Student information is confidential, and schools were not identified. The Child and Adolescent Statute (Law no. 8,069, dated 13.07.1990) provides adolescents with autonomy to take initiatives like answering a questionnaire that does not pose a risk to their health, supporting health policies for this age group. This information can be accessed in the research publication, available from: https://biblioteca.ibge.gov.br/visualizacao/livros/liv101852.pdf. Consent for publicationNot applicable. Competing interestsThe authors declare that they have no competing interests. Competing interests The authors declare that they have no competing interests."

"Funding Not applicable."