1. Escola de Enfermagem, Departamento de Enfermagem Materno-infantil em Saúde Pública, Universidade Federal de Minas Gerais, Belo Horizonte 30130-100, Brazil
2. Department of Social and Applied Nutrition, Institute of Nutrition Josué de Castro, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
3. Department of Epidemiology and Biostatistics, Institute of Community Health, Fluminense Federal University, Niterói, Rio de Janeiro 24033-9, Brazil
4. Department of Public Health, Federal University of Maranhão, São Luís, Maranhão 65020-070, Brazil