Wagner, K.D., Pitpitan, E.V., Chavarin, C.V., et al. Sexually Transmitted Diseases (August 2013), Vol. 40 No. 8, pp. 619-623.
The authors conducted a cross-sectional study (from June 2011-August 2012) in Tijuana, Mexico to assess the extent to which 170 drug-using male clients of female sex workers (FSWs) have also been paid for sex; to estimate the prevalence of sexual partner types; and to understand the association between sexual partner type and HIV risk. Overall, 45 (26.5 percent) of male clients reported having any paying sexual partners in the previous four months, with 11 (24 percent) reporting both male and female partners. This suggests that drug-using male clients and male sex workers may overlap within a group who both pay and are paid for sex. Having a paying partner was significantly associated with an increased probability of being positive for HIV or another sexually transmitted infection—HIV-positive persons were 3.5 times more likely to report this behavior. Injection drug and cocaine use in the previous four months was also independently associated with reporting paying sexual partners. Further research should explore behavioral characteristics, including injecting drug and cocaine use and condom use practices with varying partner types, among this group. The authors concluded that HIV prevention activities for drug-using male clients should aim to increase the availability and correct use of condoms in sex work venues.