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Objective: To evaluate the effects of safe sex intervention at a substance use disorder treatment agency designed to serve gay men., Method: Of all eligible men, 456 (78%) were recruited as they entered treatment for a substance use disorder. This cohort was followed for five waves of data collection, each wave measuring the previous 90 days. Assigned to the experimental condition (treatment for substance use disorder plus a safe sex intervention) were 82 men; 65 were assigned to the regular substance use disorder treatment., Results: Although levels of risk within each wave were never significantly different between the two treatment groups, reductions in unprotected anal intercourse (UAI) with a nonmonogamous partner for both groups from the baseline Wave-1 levels were uniformly significant (all p's < .05). Such high-risk sex in the year-long follow-up period was correlated with UAI reported at intake, enjoyment of UAI, relative youth, heavier concurrent use of alcohol or amphetamines and greater numbers of sexual partners., Conclusions: We conclude that: (1) substantial HIV risk reductions can occur after initiation of treatment for substance use disorder among gay men; (2) risk reductions begin soon after treatment begins; (3) lapses to unsafe sex are common during treatment; (4) continued UAI is most likely among those men who are riskier at intake, who continue to be more sexually active and who are more likely to combine substance use and sexual behavior; (5) AIDS prevention activities conducted at treatment agencies cannot reach all high-risk substance-using gay men.

Objective: The purpose of this study is to compare reports of alcohol use, drug use and sexual behavior from 30-day Summary measures with an expanded version of a Timeline Follow-back (Timeline) interview technique among gay/bisexual men entering outpatient substance abuse treatment at a gay-identified agency., Method: Respondents (N = 418) first completed self-administered questionnaires covering the 30-day period prior to their last use of alcohol or drugs. Summary measures included alcohol use, number of days of use for five categories of drugs and number of episodes of anal intercourse (with and without condoms) by partner type (primary or secondary). Participants then completed the Timeline interview procedure to recall their daily drinking, drug use and sexual behavior during the same 30-day period., Results: The findings indicate that the Timeline method yielded significantly lower estimates of mean number of drinks consumed when heavier than usual drinking days is included in the Summary measure (124.0 vs 147.0 drinks), mean number of days drugs were used (9.3 vs 10.7) and mean number of episodes of anal intercourse with a primary partner (1.2 vs 2.2). Differences generally remained significant when assessed by length of time between the study interview and last use of alcohol or drugs, with the exception of number of anal sex episodes with primary partners., Conclusions: These findings indicate that Timeline estimates are lower than estimates using a more standard method (Summary measures). Discrepancies between these findings and those reported by other researchers indicate a need for further exploration of the effects of the mode of administration on various populations.

Objectives: This study compared history of substance use and episodic use in terms of HIV seroconversion., Methods: A sample of 337 baseline HIV-negative gay men was followed for 6 years. Bivariate and survival analyses were used to compare 39 converters with nonconverters on substance use behaviors., Results: Seroconverters were consistently more likely to report use of marijuana, nitrite inhalants, amphetamines, and cocaine than nonconverters. Consistent use of nitrite inhalants and amphetamines increases the relative risk of seroconversion, while episodic use does not. Both patterns of cocaine use increase seroconversion risk., Conclusions: There are three potential mechanisms for an increased risk of conversion due to consistent substance use.

Objective: The Brazilian Carnival is thought to be a time when the risk of HIV infection is likely to be high. We therefore compared the risk during Carnival to risk in the past month among male samba school participants in São Paulo, Brazil., Subjects and Methods: A cross-sectional study was conducted among 380 male samba school drummers randomly sampled during rehearsal for the 1993 Carnival in São Paulo by means of a 20-min interviewer-administered questionnaire. The main outcome variable was condom use with non-steady partners., Results: The sexual behavior of 36.1% of subjects risked HIV infection, but only 9.7% of all subjects were at risk only during Carnival. Subjects with a sexual risk of HIV differed from those without risk in substance use, attitudes towards condoms and expectations about Carnival; those who were at risk only during Carnival did not differ from those who were at risk at other times. About half of the subjects had been given free condoms during Carnival, although few of the men at risk had actually used them., Conclusions: Though more than a third of the drummers were at risk of HIV infection, only a small per cent were at risk only during Carnival. The level of sexual risk of HIV infection is probably better explained by factors in the men's daily lives, rather than through information on risks taken during Carnival. These results raise questions concerning the efficacy of universal condom distribution during Carnival, since about half of the men were given condoms but few of those at risk actually used them. A targeted distribution of condoms to populations with a high demonstrated risk may be more effective in preventing new HIV infection.