Seroprevalence and Risk Factors Associated with HTLV-I/II Infection in Injection Drug Users in Northern New Jersey

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Abstract
Data from an AIDS Demonstration Research project in Paterson, NJ, that enrolled out-of-treatment injection drug users (IDUs) were analyzed to detect demographic patterns and risk factors associated with infection with human immunodeficiency virus (HIV) and human T-lymphotropic virus types I or II (HTLV-I/II). Of 410 IDUs screened, 44.2% were HIV-positive and 19.3% were HTLV-I/II-positive. African-Americans were significantly more likely than other racial groups to be HTLV-I/II-seropositive and to be HIV-seropositive. Over one-fifth of African-Americans--but no Latinos or whites--were doubly infected with HIV and HTLV-I/II. In logistic regression analysis, African-American race, long-term injection drug use, and age were significant predictors of HTLV-I/II-seropositivity. While the associations between recent needle practices and HTLV-I/II-seropositivity fell short of significance, the trends in the data were consistent with a hypothesis that HTLV-I/II is transmitted through the sharing of injection equipment. Public health implications of the data are discussed.

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