1. Center of Biological Sciences and Health Taquari Valley University Lajeado RS Brazil
2. Faculty of Public Health University of São Paulo São Paulo SP Brazil
3. Postgraduate Program in Epidemiology Federal University of Pelotas Pelotas Brazil
4. Postgraduate Program in Health and Behavior Catholic University of Pelotas Pelotas RS Brazil
5. Department of Preventive Medicine Faculty of Medicine FMUSP University of São Paulo São Paulo SP Brazil
6. Postgraduate Program in Dentistry Federal University of Pelotas Pelotas RS Brazil