[1] Univ Fed Piaui, Dept Community Med, Teresina, PI, Brazil
[2] Univ Sao Paulo, Postgrad Program Fundamental Nursing, Ribeirao Preto, Brazil
[3] Univ Fed Piaui, Nursing Postgrad Program, Teresina, PI, Brazil
[4] Univ Sao Paulo, Postgrad Program Psychiat Nursing, Ribeirao Preto, Brazil