[1] Univ Fed Pelotas, Postgrad Program Nursing, Pelotas, RS, Brazil
[2] Fed Univ Rio Grande, Postgrad Program Hlth Sci, Rio Grande, RS, Brazil
[3] Univ Fed Pelotas, Postgrad Program Epidemiol, Pelotas, RS, Brazil
[4] Univ Fed Pelotas, Postgrad Program Phys Educ, Pelotas, RS, Brazil
[5] Univ Fed Rio Grande do Sul, Postgrad Program Epidemiol, Porto Alegre, RS, Brazil