1. Department of Epidemiology, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
2. Department of Internal Medicine, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
3. Department of Endocrinology, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
4. Department of Statistics, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
5. Department of Medicine, McGill University, Montreal, Quebec, Canada
6. Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Quebec, Canada
7. Department of Pharmaceutical Assistance, Federal University of Rio Grande do Sul, Porto Alegre, Brazil