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This study explored the relationship between gay identity-related factors (gay community involvement, gay bar attendance, gay identity importance, and self-homophobia) and unprotected anal sex (UA) in the past 3 months among men who have sex with men (MSM) of three different race/ethnicity groups. Four hundred eighty-three MSM (mean age 34) were recruited in the San Francisco Bay Area (33% African American, 34% Latino and 33% White). Compared with White MSM, African American and Latino MSM were less likely to identify as gay, and to attend gay bars/clubs, and more likely to report self-homophobia. Just over one third of the sample reported UA (did not vary by race). Gay community involvement was associated with receptive UA with all partners (adjusted odds ratio [AOR = 1.30, 95% Confidence Interval (CI) = 1.06-1.60). Gay bar attendance was associated with insertive UA with all partners (AOR = 1.20, 95% CI = 1.01-1.43) and with HIV-discordant partners (AOR = 1.35, 95% CI = 1.08-1.69). Implications for prevention include addressing community norms and encouraging alternatives to bars as settings in which to meet and socialize with other MSM.

Objective: To assess the interest of out-of-treatment methamphetamine-using men who have sex with men (MSM) seen at public health STD clinics in an intervention specifically targeting their drug use. Study Design: An anonymous, self-administered survey of MSM who use methamphetamine attending public health STD clinics in Seattle and San Francisco. Results: Among 174 men surveyed, 36% reported being considerably or extremely troubled or bothered by their methamphetamine use, 62% reported a considerable or extreme desire to reduce or stop their use of methamphetamine, and 52% reported considerable or extreme interest in attending a program to stop or decrease methamphetamine use. While 70% of the men surveyed had attempted to stop using methamphetamine, only 12% had ever been in drug treatment. Conclusions: In a two-city sample of MSM who use methamphetamine, interest in an intervention to help men stop or decrease their methamphetamine use is high. Interventions that target methamphetamine use and are delivered through the public health system merit further investigation.

Objective To examine the prevalence of negotiated safety (NS) in a diverse sample of HIV-negative men who have sex with men (MSM), characteristics of MSM practicing NS, and adherence to NS. Methods This was a cross-sectional survey of San Francisco MSM recruited from venues and community organizations. NS relationships were defined as those in which HIV-negative men were in seroconcordant primary relationships for >/=6 months, had unprotected anal intercourse (UA) together, and had rules prohibiting UA with others. Adherence to NS was determined from self-reported sexual behavior in the prior 3 months. Presence of an agreement with NS partners to disclose rule breaking was also determined. Results Of 340 HIV-negative participants, 76 (22%) reported a current seroconcordant primary relationship for >/=6 months. Of these 76 men, 38 (50%) had NS relationships, 30 (39%) had no UA with primary partners, and 8 (11%) had UA with primary partners without rules prohibiting UA with others. In multivariate analysis, NS was more common than no UA with primary partners in younger men. Among 38 NS men, 29% violated their NS-defining rule in the prior 3 months, including 18% who reported UA with others, and 18% reported a sexually transmitted infection (STI) in the prior year. Only 61% of NS men adhered fully to rules and agreed to disclose rule breaking. Conclusions Although NS was commonly practiced among HIV-negative men in seroconcordant relationships, some men violated NS-defining rules, placing themselves and potentially their primary partners at risk for HIV infection. Prevention efforts regarding NS should emphasize the importance of agreement adherence, disclosure of rule breaking, and routine STI testing.

Objectives: There is evidence that methamphetamine and sildenafil (Viagra) use are associated with sexual risk behaviour among men who have sex with men (MSM). We investigated the association of methamphetamine, sildenafil, and other substance use with unprotected receptive and insertive anal sex among MSM by conducting an encounter specific analysis. Methods: Data were from a cross sectional, community based survey of MSM in San Francisco regarding behaviour during their most recent anal sex encounter. Mulitvariate regression analysed independent associations of specific substance use and demographic variables with unprotected anal sex behaviours. Results: The sample (n = 388) was diverse in race/ethnicity, age, income, education, HIV status, and homosexual/bisexual identification. More than half (53%) reported unprotected anal sex, including insertive (29%) and receptive (37%) during their most recent anal sex encounter; 12% reported unprotected insertive and 17% reported unprotected receptive anal sex with an HIV discordant or unknown partner. Methamphetamine was used by 15% and sildenafil was used by 6% of the men before or during the encounter; 2% used both drugs. In multivariate analysis controlling for demographic factors and other substance use, methamphetamine use was associated with unprotected receptive (odds ratio (OR), 2.03; 95% confidence interval (CI), 1.09 to 3.76) and sildenafil use was associated with unprotected insertive (OR, 6.51; CI, 2.46 to 17.24) anal sex. Effects were stronger with HIV discordant or unknown sex partners specifically. Conclusion: Encounter specific associations of methamphetamine and sildenafil use with unprotected receptive and insertive anal sex, respectively, indicate the importance of assessment specificity and tailoring risk reduction efforts to address certain drugs and sexual behavioural roles among MSM.

Objectives: To assess the prevalence of and factors associated with 'barebacking' as a sociocultural phenomenon in a sample of HIV-positive and -negative men who have sex with men (MSM), and to assess the reasons for barebacking and venues for meeting partners. Design: A cross-sectional survey of MSM recruited in the San Francisco Bay Area from July 2000 to February 2001. Methods: Barebacking, defined as 'intentional anal sex without a condom with someone other than a primary partner', was assessed among men who had heard of the term. Participants were recruited outside multiple venues and interviewed later at community locations. Chi-square and multivariate logistic regression were used for analysis. Results: The sample (n = 554) of MSM were African-American (28%), Latino (27%), white (31 %) and other race/ethnicity (14%); 35% reported being HIV-positive. Seventy per cent of the men had heard of barebacking. Among men aware of the term, 14% had barebacked in the past 2 years (22% of HIV-positive versus 10% of HIV-negative men, P < 0.001); 10% of the full sample did so. The prevalence of barebacking did not differ by race/ethnicity or sexual orientation identification. Men tended to report bareback partners who had the same HIV serostatus; however, a sizeable proportion of men had partners of different or unknown serostatus. Increased physical stimulation and emotional connectedness were the primary reasons for barebacking. Conclusion: New approaches are needed to reduce bareback behavior and the risk of HIV transmission, including innovative health-promoting behavioral and biomedical interventions.

Context: HIV risk behavior among urban gay/bisexual men has recently increased. High-risk sexual activity and drug use may be particularly high during circuit party (CP) weekends, during which gay/bisexual men congregate for social activities and dancing. Objectives: To compare prevalence of risk behaviors during CP weekends with those during non-CP weekends. Design: Cross-sectional study. Participants: 295 gay/bisexual men from the San Francisco Bay Area. Main Outcome Measures: Drug use and sexual risk behavior during a San Francisco CP weekend, a CP weekend held in another geographic area (distant weekends), and two non–CP weekends. Results: During their most recent distant CP weekend, 80% of participants used methylenedioxymethamphetamine (ecstasy), 66% ketamine, 43% crystal methamphetamines, 29% gamma-hydroxybutyrate or gamma-butyrolactone (GHB/GBL), 14% sildenafil (Viagra), and 12% amyl nitrites (poppers); 53% used four or more drugs. Drug use prevalence was greater during CP than non-CP weekends (p < .001). Unprotected anal sex with partners of unknown or opposite HIV serostatus was most prevalent during distant CP weekends, reported by 21% of HIV-positive and 9% of HIV-negative participants. In multivariate analysis, predictors of unprotected anal sex with opposite or unknown HIV serostatus partners included being HIV-positive (odds ratio [OR], 3.2; 95% confidence interval [CI], 1.4–7.5), and weekend use of crystal methamphetamines (OR 2.4; 95% CI, 1.1–4.9), sildenafil (OR, 3.8; 95% CI, 2.0–7.3), and amyl nitrites (OR, 2.2; 95% CI, 1.3–4.0). Conclusions: Prevalence of high-risk activity during these weekends suggests significant potential for HIV transmission in this population. Public health programs in communities hosting CPs should aim to reduce rates of drug use and sexual risk behavior among CP participants, especially HIV-positive men.

Background: Research suggests that because of economic necessity, many male-to-female (MTF) transgender individuals trade sex for money, drugs, housing, and other things they may need. To date, no studies have quantitatively assessed psychosocial correlates of condom use with this population. Methods: We conducted a cross sectional study with 190 MTF transgender individuals involved in sex trade in San Francisco, California. Multivariate logistic regression was used to determine factors independently associated with inconsistent condom use during receptive anal sex with exchange partners. Results: About one fifth of our participants reported inconsistent condom use during receptive anal sex in the past 6 months. In the multivariate model, low self-esteem [adjusted odds ratio (AOR) = 3.09; 95% confidence interval (CI) (1.28, 7.47)], a history of forced sex or rape [AOR = 2.91; 95% CI (1.06, 8.01)], and use of crack-cocaine [AOR = 2.59; 95% CI (1.09, 6.13)] were independently associated with inconsistent condom use. Conclusions: Our findings highlight an urgent need for multilevel risk reduction interventions for MTF transgender individuals involved in sex trade. Such interventions will be most effective if they address the psychosocial context of sexual risk taking by focusing on issues such as low self-esteem, sexual violence, and illicit drug use.