Este estudio subraya la necesidad de adoptar un enfoque de reducción de daños para mitigar las consecuencias negativas del uso de drogas inyectadas. Más información, en inglés, está disponible abajo.
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In the early 1990s, drug production in Colombia diversified to include heroin as well as cocaine, and since then the country's role in the heroin trade has substantially increased. According to the United Nations Office on Drugs and Crime, Colombia produced approximately 70 to 100 metric tons of heroin between 1998 and 2004. Studies have found an increase in local heroin use since the mid-1990s. This is a strong cause for concern, given the potential for HIV to spread through networks of injection drug users and disseminate to the general public.
In 1999 the Colombian Ministry of Health confirmed the first cases of HIV among people who inject drugs (PWID). The threat of an HIV/AIDS epidemic in Colombia may be especially pressing, as increased incidence of heroin injection has accompanied the rise in heroin use. However, despite such concerns, drug injection in Colombia remains a largely understudied practice.
A recent study by Pedro Mateu-Gelabert, PhD, principal investigator with New York University's Center for Drug Use and HIV Research (CDUHR) and NDRI, Inc., examined injection risk behaviors among heroin injectors in the Colombian cities of Medellín and Pereira to explore the implications for possible increased HIV transmission within PWID.
"The two cities were chosen because they are epicenters for street level drug sales and preliminary research indicated a sizeable number of young PWID in both cities," said Dr. Mateu-Gelabert.
Published in the journal of Substance Use and Misuse, the study, "Heroin Use and Injection Risk Behaviors in Colombia: Implications for HIV/AIDS Prevention," began with six non-randomly selected PWID "seed" participants over the age of 18, who were chosen to recruit their peers, who in turn recruited their peers. Through six to seven waves of recruitment in each city, the study accumulated a total of 540 participants. Field researchers conducted a structured hour-long interview with each participant, and collected a small blood sample via finger prick to test for HIV. On average, participants were 25 years of age, with the median age being 24. By sample design, all participants injected heroin.
For their first time injecting, most participants (60%) report they were assisted by a close friend, 12% reported they were helped by other known people, and 17% reported they self-injected. On average, participants started injecting drugs at 21 years of age. Participants reported an average of 3.2 injections per day, 73% responded one to three times a day, and the other 27% reported injecting four or more times per day.
"Syringe sharing was quite common among participants," says Dr. Mateu-Gelabert. "42% said they used previously used syringes provided by other PWID. Forty-nine percent of participants also reported sharing cookers, filters, or rinse water."
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