1. Postgraduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
2. Postgraduate Program in Physical Education, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
3. Department of Psychiatry, University of Oxford, Oxford, United Kingdom
4. Centre for Global Child Health, The Hospital for Sick Children, Toronto, Ontario, Canada
5. Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, United Kingdom