Drug Injection-Related and Sexual Behavior Changes in Drug Injecting Networks after the Transmission Reduction Intervention Project (TRIP): A Social Network-Based Study in Athens, Greece

George Giallouros, Katerina Pantavou, Despina Pampaka, Eirini Pavlitina, Daniele Piovani, Stefanos Bonovas and Georgios K. Nikolopoulos
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George Giallouros: Department of Business and Public Administration, University of Cyprus, Nicosia 1678, Cyprus
Katerina Pantavou: Medical School, University of Cyprus, Nicosia 2029, Cyprus
Despina Pampaka: Cyprus International Institute for Environmental and Public Health, Cyprus University of Technology, Limassol 3041, Cyprus
Eirini Pavlitina: Transmission Reduction Intervention Project, Athens Site, 11527 Athens, Greece
Daniele Piovani: Department of Biomedical Sciences, Humanitas University, 20090 Milan, Italy
Stefanos Bonovas: Department of Biomedical Sciences, Humanitas University, 20090 Milan, Italy
Georgios K. Nikolopoulos: Medical School, University of Cyprus, Nicosia 2029, Cyprus

IJERPH, 2021, vol. 18, issue 5, 1-13

Abstract: The Transmission Reduction Intervention Project (TRIP) was a network-based, enhanced contact tracing approach, targeting recently HIV-infected people who inject drugs (PWID) in Athens, Greece (2013–2015). This analysis examines behavioral changes of participants in TRIP and their determinants between baseline and follow-up visits to the program. All participants of TRIP were tested for HIV and interviewed using a questionnaire with items on drug injection-related and sexual behaviors. Multivariable logistic regression models were used to examine potential relationships between participants’ behaviors and sociodemographic or other characteristics. The analysis included 292 participants. At follow-up, the percentage of participants who injected drugs decreased [92.5%, n = 270 versus 72.3%, n = 211 ( p < 0.001)], and more participants adopted safer behaviors. Employment, age, and gender were significantly associated with some behavioral changes. For instance, unemployed participants were half as likely as the employed to stop drug injection [adjusted odds ratio (aOR): 0.475, 95% confidence interval (CI): 0.228, 0.988]. Increasing age was associated with lower probability of sharing syringes at follow-up (aOR: 0.936, 95%CI: 0.887, 0.988). Finally, females were less likely than males to improve their behavior related to sharing cookers, filters, or rinse water (aOR: 0.273, 95% CI: 0.100, 0.745). In conclusion, adoption of safer behaviors was observed following TRIP implementation. Future prevention programs should focus on younger PWID and especially females. Social efforts to support employment of PWID are also important.

Keywords: PWID; recent infection; HIV; networks; injecting-related behaviors; sexual behaviors (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
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