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Sociometric Risk Network Structure, HIV Prevalence, and Drug Injection-Related Norms among People Who Inject Drugs (PWID) in Athens, Greece

Bibliographic Data

ID21645342
AuthorsAndria Hadjikou (Medical School, University of Cyprus, Nicosia, Cyprus), Katerina Pantavou (0000-0002-9176-4369, Medical School, University of Cyprus, Nicosia, Cyprus), Eirini Pavlitina (Transmission Reduction Intervention Project, Athens, Greece), Ioanna D Pavlopoulou (0000-0003-0607-8266, National and Kapodistrian University of Athens), Mary Economou (0000-0003-0522-4671, Medical School, University of Cyprus, Nicosia, Cyprus), Eirini Christaki (0000-0002-8152-6367, Medical School, University of Cyprus, Nicosia, Cyprus), Demetris Lamnisos (0000-0001-8535-6601, Department of Health Sciences, School of Sciences, European University of Cyprus, Nicosia, Cyprus), Evangelia Georgia Kostaki (0000-0002-3346-0930, National and Kapodistrian University of Athens), Evangelia-Georgia Kostaki (National and Kapodistrian University of Athens), Dimitrios Paraskevis (0000-0001-6167-7152, National and Kapodistrian University of Athens), J A Schneider (0000-0002-7870-5639, University of Chicago Medical Center), John Schneider (University of Chicago Medical Center), Μichael A Talias (0000-0002-1802-5586, Open University of Cyprus), Michael Talias (Open University of Cyprus), R Friedman (0000-0003-2083-1226, Department of Population Health, NYU Medical School, New York City, New York, USA), Samuel R Friedman (Department of Population Health, NYU Medical School, New York City, New York, USA), Georgios K Nikolopoulos (0000-0002-3307-0246, Medical School, University of Cyprus, Nicosia, Cyprus, corresponding author)
Year2021
Volume56
Issue8
Pages1190-1201
Publication date2021-07-03
Peer ReviewedYes
Open AccessNo
TypeARTICLE
VenueSubstance Use & Misuse (JOURNAL)
Journal identifiersISSN: 1082-6084 • E-ISSN: 1532-2491
PublisherInforma UK Limited (PUBLISHER • GB)
DOI10.1080/10826084.2021.1914103
PMID33975493
OpenAlexW3161055056
LanguageEN
Citations received2
References cited40

Background: Structural properties of sociometric networks have been associated with behaviors related to HIV transmission. Very few studies, however, have explored the correlation between sociometric network factors and drug injection-related norms. Methods: This exploratory work: (i) describes basic structural qualities of a sociometric risk network of participants in the Transmission Reduction Intervention Project (TRIP) in Athens, Greece, in the context of a large HIV outbreak among people who inject drugs (PWID); (ii) measures HIV prevalence within specific structures within the sociometric risk network of PWID in TRIP; and (iii) explores the association of structural properties of the sociometric risk network in TRIP with drug injection-related norms. Results: The sociometric risk network in TRIP consisted of a large component (n = 241, 67.8%), a few small components (n = 36, 10.1%) with 2-10 individuals each, and some isolates (n = 79, 22.2%). HIV prevalence was significantly higher in the large component (55.6%), the 2-core (59.1%) and 3-core (66.3%) of the large component, and the 3-cliques of the cores. Drug injection-related norms were significantly associated with structural characteristics of the sociometric risk network. A safe behavioral pattern (use of unclean cooker/filter/rinse water was never encouraged) was significantly (p = 0.03) less normative among people who TRIP participants of the 2-core injected with (40.5%) than among network contacts of TRIP participants outside the 2-core (55.6%). On the contrary, at drug-using venues, 2-core members reported that safer behaviors were normative compared to what was reported by those without 2-core membership. Conclusions: Sociometric network data can give useful insights into HIV transmission dynamics and inform prevention strategies.Supplemental data for this article is available online at https://doi.org/10.1080/10826084.2021.1914103

Family medicine · Geography · Needle sharing · Normative · Psychiatry · Sociology · Demography · HIV, Drug Use, Sexual Risk · HIV/AIDS Research and Interventions · Homelessness and Social Issues · Medicine · Psychology

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Unique citing works2
Citations per year2
Citation span2025 - 2026 (2)
Citation velocitycurrent
Highly citedNo
Citation typesNeutral: 2

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