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Drug abusers with psychiatric comorbidity are at high risk for becoming exposed to HIV. To address this compelling public health issue, our randomized HIV prevention study compares the effectiveness of the NIDA standard HIV testing and counseling protocol to a four session, peer-delivered, educational intervention for out-of-treatment cocaine users with and without antisocial personality disorder (ASPD) and major depression. Among the 966 out-of-treatment cocaine users who have completed the 3 month follow-up, all groups, regardless of assignment to standard vs. peer-delivered intervention or psychiatric status, improved significantly in: crack cocaine use, injection drug use, number of IDU sex partners and overall number of sex partners, but not in condom use. Nevertheless, when stratified by psychiatric status, ASPD was associated with significantly less improvement in crack cocaine use (P = 0.04) and with a trend for less improvement in having multiple sex partners and having IDU sex partners (P = 0.06 and 0.08, respectively). ASPD status was not associated with change in injection drug use or condom use. Depression was associated with a trend (P = 0.07) for greater improvement in crack cocaine use but not in any of the other behaviors. When examining the standard and peer intervention groups separately, no consistent differences in the association of psychiatric comorbidity with outcome were discerned between the two groups. We conclude that persons with ASPD and depression respond well to standard HIV prevention interventions, but these psychiatric disorders respectively attenuate and enhance response somewhat. Behavioral interventions tailored for persons with these conditions may be indicated if long-term change in HIV risk behaviors is to be achieved. |
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