Recent studies have reported on the utility of audio computer-assisted self-interviewing (ACASI) in surveys of human immunodeficiency virus (HIV) risk behaviors that involve a single assessment. This paper reports the results of a test of ACASI within a longitudinal study of HIV risk behavior and infection. Study participants (gay men (n = 1,974) and injection drug users (n = 903)) were randomly assigned to either ACASI or interviewer-administered assessment at their second follow-up visit 12 months after baseline. Significantly more of the sexually active gay men assessed via ACASI reported having sexual partners who were HIV antibody positive (odds ratio = 1.36, 95% confidence interval: 1.08, 1.72), and a higher proportion reported unprotected receptive anal intercourse. Among injection drug users (IDUs), our hypothesis was partially supported. Significantly more IDUs assessed via ACASI reported using a needle after another person without cleaning it (odds ratio = 2.40, 95% confidence interval: 1.34, 4.30). ACASI-assessed IDUs reported similar rates of needle sharing and needle exchange use but a lower frequency of injection. Participants reported few problems using ACASI, and it was well accepted among members of both risk groups. Sixty percent of the participants felt that the ACASI elicited more honest responses than did interviewer-administered questionnaires. Together, these data are consistent with prior research findings and suggest that ACASI can enhance the quality of behavioral assessment and provide an acceptable method for collecting self-reports of HIV risk behavior in longitudinal studies and clinical trials of prevention interventions.
Since first recognition of the scope of the acquired immunodeficiency syndrome epidemic among the drug-using community, substance abuse treatment has been viewed as playing an important role in preventing new infections. In the past 20 years, many studies have documented significantly lower rates of drug use, drug-related risk behaviors, and human immunodeficiency virus (HIV) infections among drug users who remain in treatment programs. There is also growing evidence that drug detoxification alone is insufficient to provide protection from HIV infection. These findings have important implications for users of cocaine and noninjection drugs, as well as heroin injectors. Despite strong evidence of effectiveness and widespread support for the important public health role of drug treatment, its impact has been compromised by limited availability and acceptability. The available data clearly establish drug abuse treatment as HIV prevention, yet without expansion of existing treatment programs and the continued development of treatments for addiction to cocaine and other widely used stimulants, its public health potential cannot be realized.
High rates of unprotected sexual behaviors and the exchange of sex for crack have been reported among female crack cocaine users. This subpopulation of drug users is at significant risk for contracting and transmitting HIV and AIDS. To date, there has been no research comparing crack- and opioid-abusing women, particularly regarding their involvement in high-risk behaviors and other key background indicators for different subgroups of drug-abusing women. Sixty-one crack-abusing African-American women who recently entered an intensive outpatient treatment program were compared to 64 matched women whose primary drug of abuse was heroin. The opioid subgroup represented both those who were involved in methadone maintenance and those who were out of treatment. Higher rates of high-risk sexual behaviors were reported by the crack subgroup, including prostitution, number of sexual partners, and infrequency of condom use. As expected, i.v. drug use and high-risk behaviors associated with needle use were much higher among the opioid subgroup. Other significant differences were found between the two groups across key indicators. Individuals in the crack subgroup were younger, cared for more children, were less employable, were less likely to be married, and had more extensive lifetime substance abuse. Quantitative and qualitative background and clinical data are also presented. The nature of crack versus heroin abuse is also discussed, particularly in relation to high-risk sexual behaviors. Finally, the impact of the findings on developing appropriate treatment interventions for both groups is addressed.
OBJECTIVES. The purpose of this study was to assess the willingness of intravenous drug users to participate in a preventive human immunodeficiency virus (HIV) vaccine efficacy trial. METHODS. Of the 347 intravenous drug users in methadone treatment who were approached for participation, 257 completed a battery of self-administered questionnaires assessing risk behaviors, interest in vaccine trials, and other vaccine-related information. Data from 16 known seropositives and 1 inconsistent responder were dropped from analyses (n = 240). RESULTS. Fifty-two percent of the subjects expressed a willingness to be one of the first individuals to participate in a preventive HIV vaccine efficacy trial. Subjects who had recently shared needles or works and subjects who trusted the government to ensure vaccine safety were both twice as likely to report interest in participation. Twenty-two percent of subjects reported that they would increase needle sharing if vaccinated. Thirty percent did not know what a vaccine was. CONCLUSIONS. These findings suggest that some in-treatment intravenous drug users would volunteer for a preventive HIV vaccine efficacy trial. Education and counseling will be required to ensure that subjects fully understand the trial's purposes, methods, risks and benefits.
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