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Published on: January 27, 2019
Sexual transmission risk behavior reported among behaviorally bisexual HIV-positive injection drug-using men
Kelly R Knight1, Starley B Shade, David W Purcell
1Center for AIDS Prevention Studies, Department of Medicine, University of California at San Francisco, San Francisco, CA 94110-1372, USA. kelly.knight@ucsf.edu
Background:
Few research studies have examined the HIV transmission risk behaviors of HIV-positive injection drug users (IDUs) who are men who have sex with men and women (MSMW).
Methods:
We compared unprotected vaginal or anal sex with an HIV-negative or unknown (UNK) status sexual partner of MSMW (n=118) with men who have sex exclusively with women (MSW; n=469) and men who have sex exclusively with men (MSM; n=90) using baseline information from the Intervention for Seropositive Injectors-Research and Evaluation (INSPIRE) study, a 4-city randomized controlled trial.
Results:
MSMW were twice as likely to report unprotected vaginal sex (P<0.001) and 3 times as likely to report unprotected anal sex with an HIV-negative/UNK status female partner (P<0.001) as MSW. MSMW did not differ in their report of unprotected insertive anal sex and were half as likely to report unprotected receptive anal sex with HIV-negative/UNK status men (P=0.02) as MSM. MSMW were 2 times as likely to report engaging in transactional sex (buying or selling sex in exchange for money, drugs, or housing) than MSM or MSW (81%, 43%, and 36%, respectively; P<0.001).
Conclusions:
Further research is needed to understand the contexts of unprotected sex among HIV-positive injection drug-using MSMW. Prevention programs should target the unique prevention needs of this population, particularly their risk with female partners.
Insights
HIV-positive men who have sex with men and women (MSMW) who inject drugs engage in higher-risk sexual behaviors, particularly with female partners. Targeted prevention is crucial for this population.
Area of Science:
- Public Health
- Infectious Disease Epidemiology
- Behavioral Science
Background:
- Limited research exists on HIV transmission risk behaviors among HIV-positive injection drug users (IDUs) who are men who have sex with men and women (MSMW).
- Understanding these behaviors is critical for developing effective HIV prevention strategies.
Purpose of the Study:
- To compare the HIV transmission risk behaviors of HIV-positive MSMW with those of men who have sex exclusively with women (MSW) and men who have sex exclusively with men (MSM).
Main Methods:
- Utilized baseline data from the Intervention for Seropositive Injectors-Research and Evaluation (INSPIRE) study, a multi-city randomized controlled trial.
- Compared unprotected sexual behaviors and transactional sex prevalence among MSMW (n=118) against MSW (n=469) and MSM (n=90).
Main Results:
- MSMW reported significantly higher rates of unprotected vaginal and anal sex with HIV-negative/unknown status female partners compared to MSW.
- MSMW showed similar rates of unprotected insertive anal sex but lower rates of unprotected receptive anal sex with HIV-negative/unknown status male partners compared to MSM.
- MSMW were more likely to engage in transactional sex than both MSW and MSM.
Conclusions:
- Further investigation is needed to understand the specific contexts of unprotected sex among HIV-positive injection drug-using MSMW.
- Prevention programs must address the unique needs of this population, with a particular focus on risks associated with female partners.
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