Funding for this research was provided by:
Fundação de Amparo à Pesquisa do Estado de São Paulo (2016/25878-7, 2014/17764–6, 2014/ 06518–4, 2017/09671–6)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (Research Fellows, Research Fellows)
Received: 18 July 2019
Accepted: 28 May 2020
First Online: 5 June 2020
Ethics approval and consent to participate
: This study was approved by the Ethics in Research Committee - COEP - of the School of Public Health of the USP (CAAE: 38170514.4.0000.5421, December 11, 2014). No informed consent was used because we only worked with secondary data provided by the surveillance system. All data analyzed were anonymized.
: Not applicable.
: The authors declare that they have no competing interests.