Couples at risk: HIV-1 concordance and discordance among sexual partners receiving voluntary counseling and testing in Uganda.

Objective: To determine correlates of HIV-1 concordance for couples receiving voluntary HIV counseling and testing.

Design: Cross-sectional study of couples receiving voluntary HIV counseling and testing in Kampala, Uganda.

Methods: An interview and physical examination were conducted for 49 HIV-1-concordant (both partners infected with HIV) and 126 HIV-1-discordant (1 partner infected with HIV and 1 partner HIV negative) couples.