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  1. The transition from injecting to smoking heroin in three Spanish cities.

    Article - En anglais


    To measure the current prevalence of different routes of heroin administration among users and to describe the most frequent patterns in the evolution of the main route from the time of first use to the present and their implications for the control of the HIV epidemic.


    Cross-sectional study.

    Face-to-face interviews using a structured questionnaire.

    Setting and participants

    Nine hundred and nine regular heroin users from Madrid, Barcelona and Seville (about 300 per city), half of them recruited in treatment centres and the other half out of treatment.


    Socio-demographic characteristics, current and historical behaviours related to route of administration.


    Before 1980 injection was the first main route of heroin administration for most users in Barcelona and Madrid ; in Seville smoking already predominated, although 40% of users began by injecting.

    Sniffing subsequently became predominant in Barcelona, while smoking became the predominant first route in Madrid and Seville (smoking has been the only first route in Seville since 1991).

    The prevalence of injection as the main route of administration during the last 30 days was 77.3% in Barcelona, 24.3% in Madrid and 23. 9% in Seville ; smoking predominated in the latter two cities.

    The factors most strongly associated with injection as the preferred route were city of recruitment and having a partner who injected. (...)

    Mots-clés Pascal : Toxicomanie, Voie administration, Etude longitudinale, Espagne, Europe, Milieu urbain, Voie intraveineuse, Fumeur, Facteur sociodémographique, Prévention, SIDA, Virose, Infection, Santé mentale, Homme, Immunopathologie, Immunodéficit, Héroïne

    Mots-clés Pascal anglais : Drug addiction, Route of administration, Follow up study, Spain, Europe, Urban environment, Intravenous administration, Smoker, Sociodemographic factor, Prevention, AIDS, Viral disease, Infection, Mental health, Human, Immunopathology, Immune deficiency, Heroin

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 98-0080386

    Code Inist : 002B18C05A. Création : 14/05/1998.