Temporal trends of HIV-related risk behavior among Brazilian military conscripts, 1997-2002.

Purpose: To present selected results of military conscript surveys related to HIV/AIDS, conducted in Brazil, 1997-2002.

Methods: Questionnaires including information on socio-demographic data, sexual behavior practices, sexually transmitted infections-related problems, and use of injecting drugs were completed by 30970 individuals, obtained through a 2-stage sampling. An index of sexual risk behavior was developed to take into account multiplicity of partners and irregularity of condom use.