This study examined whether networks of drug-injecting and sexual relationships among drug injectors are associated with individual human immuodeficiency virus (HIV) serostatus and with behavioral likelihood of future infection.
A cross-sectional survey of 767 drug injectors in New York City was performed with chain-referral and linking procedures to measure large-scale (sociometric) risk networks.
Graph-theoretic algebraic techniques were used to detect 92 connected components (drug injectors linked to each other directly or through others) and a 105-member 2-core within a large connected component of 230 members.
Drug injectors in the 2-core of the large component were more likely than others to be infected with HIV.
Seronegative 2-core members engaged in a wide range of high-risk behaviors, including engaging in risk behaviors with infected drug injectors.
Sociometric risk networks seem to be pathways along which HIV travels in drug-injecting peer groups.
The cores of large components can be centers of high-risk behaviors and can become pockets of HIV infection.
Preventing HIV from reaching the cores of large components may be crucial in preventing widespread HIV epidermics.
Mots-clés Pascal : SIDA, Virose, Infection, Virus immunodéficience humaine, Lentivirinae, Retroviridae, Virus, Sociométrie, Comportement individuel, Toxicomanie, Facteur risque, Homme, Etats Unis, Amérique du Nord, Amérique, Immunopathologie, Immunodéficit
Mots-clés Pascal anglais : AIDS, Viral disease, Infection, Human immunodeficiency virus, Lentivirinae, Retroviridae, Virus, Sociometry, Individual behavior, Drug addiction, Risk factor, Human, United States, North America, America, Immunopathology, Immune deficiency
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 97-0478717
Code Inist : 002B06D01. Création : 03/02/1998.