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  1. The balance of positive and negative effects of specific messages in the evaluation of interventions for preventing HIV infection.

    Article - En anglais

    The study objectives were to determine the effects of a large-scale school-based HIV prevention campaign, in terms of both positive and negative effects of each single message, and to identify sub-populations more at risk.

    Forty-six schools. randomly sampled from all schools in the Lazio region, were randomized to either an intervention or a control group.

    The study population consisted of 3866 students.

    Questionnaires on AIDS-related knowledge and risk perceptions were administered to students before and after the intervention.

    Odds ratios were calculated to represent the extent to which the intervention was associated with an improvement (OR+), and the extent to which it prevented a worsening (OR-).

    Overall, the intervention was successful in communicating important messages. such as the impossibility of transmitting HIV through social contacts (OR+all significantly>1 and OR-always<1), the meaning of seropositivity' (OR+1.28,95% CI : 0.99-1.64 : OR-0.73,95% CI : 0.58 0.91), and the lack of a resolutive cure for AIDS (OR+1.61,95% CI : 1.10-2.36 ; OR-0.76,95% CI : 0.57-1.02).

    The worst results were observed in vocational and art schools, where OR+>1 were observed for only three questions and OR-values usually exceeded 1. This study highlights the necessity of remodelling the intervention, indicating which messages need to be modified. (...)

    Mots-clés Pascal : SIDA, Virose, Infection, Homme, Etudiant, Milieu universitaire, Prévention, Italie, Europe, Epidémiologie, Etude multicentrique, Etude longitudinale, Evaluation, Questionnaire, Efficacité, Intervention, Randomisation, Education santé, Immunopathologie, Immunodéficit

    Mots-clés Pascal anglais : AIDS, Viral disease, Infection, Human, Student, University environment, Prevention, Italy, Europe, Epidemiology, Multicenter study, Follow up study, Evaluation, Questionnaire, Efficiency, Operation, Randomization, Health education, Immunopathology, Immune deficiency

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

    Cote : 99-0190717

    Code Inist : 002B05C02D. Création : 16/11/1999.