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The New Jersey State Department of Health developed a program to test the following hypotheses: (1) numerous heroin addicts will respond to free detoxification treatment offered through a coupon program, (2) a substantial number of these patients will continue in treatment beyond the free detoxification attempt, and (3) participation in an AIDS education session can increase the knowledge level of intravenous drug abusers regarding this disease. Eighty-four percent of the 970 distributed coupons were redeemed for detoxification treatment. Twenty-eight percent of the program participants continued in treatment after the free detoxification period, and the AIDS information session significantly increased the knowledge of participating addicts.

We compared 224 heterosexual couples who were discordant for human immunodeficiency virus (HIV) type 1 infection (one partner HIV infected) with 78 HIV-concordant couples (both partners HIV infected) to identify demographic and behavioral risk factors for HIV transmission. Among the 229 couples whose male partner was first infected, HIV-concordant couples had engaged in anal sex more frequently before and after knowing that the male was infected than had HIV-discordant couples. Pap smears of grade 2 or higher (inflammation) were more prevalent among the second-infected female partners in HIV-concordant couples than among uninfected women in discordant couples (58% vs. 23%; P < .001). Anal sex and unprotected vaginal sex after knowledge of a male partner's infection were significant correlates of concordance in a multivariate logistic model, as were ethnicity, marital status, and antiviral therapy. Ethnicity strongly predicted concordance, even after controlling for sexual risk behaviors and stage of disease.

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