Behavioral and clinical factors and bi-variable associations with prevalent HIV infection.

IQR: Inter-quartile range (25%–75%). CI: Confidence interval. VS: vaginal sex; PP: primary partner; CP: casual partner. STI: sexually transmitted infection. UTI: urinary tract infection. *Crude Odds Ratio and p-value for the association between each variable and HIV-1 infection (chi-square test). §p-value from chi-square test for trend. 1Missing data = 1. 2Missing data = 2. 3Missing data = 3. 4Not applicable (no PP): use of condom during VS with PP = 94; PP have had sex with CP = 100; PP ever tested for HIV = 97.