The data were analyzed using the software Epi info release 6.04 Atlanta, Georgia, USA: CDC; 1996 and Stata release 10.0 College Station, Texas, USA: Stata Corporation; 2007.
Los datos se analizaron por medio de los programas Epi info 6.04 Atlanta, Georgia, USA: CDC; 1996 y Stata versión 10.0 College Station, Texas, USA: Stata Corporation; 2007.
Os dados foram analisados por meio dos programas Epi info 6.04 Atlanta, Georgia, USA: CDC; 1996 e Stata versão 10.0 College Station, Texas, USA: Stata Corporation; 2007.