Behavioural Risk Factors and HIV Infection of Injection Drug Users at Detoxification Clinics in Puerto Rico

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Abstract
Background. The ethnic and geographical variations of AIDS prevalence among Injection drug users (IDU) have highlighted the need to understand the role of the relevant rIsk factors in specific subpopulatlons of IDU. In this study we examine the factors related to seropositivity among IOU entering drug detoxification facilities In metropolitan San Juan, Puerto Rico. Methods. From October1990 until August1991, 390 IDU were Interviewed. Four groups of risk factors were examined: sexual practices, drug Injection behaviours, risk behaviours while In US Mainland cities, and while incarcerated. A stepwise logistic regression model was used to simultaneously assess the Independent effects of the behavioural risk factors on HIV seropositivlty. Results. Of the 342 IDU who were tested for HIV antibodIes, 29.5% were seropositive. The behaviours found to be associated with seropositivity were: having sex with an IOU In the last 6 months; having injected drugs for over 5 years; and Injecting with used needles while incarcerated. Discussion. Public health programmes will need to establish more effective collaborative links with correctional institutions in order to reduce the spread of HIV among IDU in Puerto Rico.

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