Funding for this research was provided by:
Conselho Nacional de Desenvolvimento Científico e Tecnológico (409933/2018-0)
Received: 12 November 2019
Accepted: 21 November 2019
First Online: 5 December 2019
Ethics approval and consent to participate
: The protocol was approved by the Ethics Committee of the Institute of Social Medicine (Comitê de ética do Instituto de Medicina Social - CAAE: 92307118.7.0000.5260). The person responsible for the student was informed of the need to sign a Consent Form and Assent according to Brazilian Resolution No. 466/2012 on research involving human beings, from the Health Council of the Ministry of Health, to authorize the information provided by the population in a study, emphasizing the secrecy regarding the identification of the content of the answers, as well as the freedom to withdraw from the research at any time. Each student was identified by a coded ID (identification) number, in order to maintain participant confidentiality. A data monitoring committee is not needed for the purposes of this study given that one author is not blinded, and that the overall risk for harm is low.
: The manuscript does not contain any individual person’s data in any form (including individual details, images and videos).
: Dr. Diana received funding from National Counsel of Technological and Scientific Development (CNPq). None of the other authors have a competing interests.