Background The spread of human immunodeficiency virus (HIV) infections is likely to consist of sub-epidemics in local areas and/or risk groups.
Small-area risk group specific analyses may thus he a suitable means of better understanding and controlling the epidemic course.
Methods An age, period, and cohort back-calculation method was used to reconstruct region-specific epidemics of HIV infection.
The HIV infection incidence rates were estimated for individual Italian regions by using as denominator the specific risk category population (i.e. intravenous drug user population [IDU], homosexual/bisexual population [MSWM], and Italian general population for heterosexual contacts [HST]), Incidence rates obtained in this way represent the risk of HIV infection conditional to belonging to the specific sub-group of the population.
Results The HIV epidemic is heterogeneous in terms of gender, risk category and region.
The highest risk of HIV infection has been estimated in the Lombardia region (North-West area) among men belonging to the IDU category in 1985.
In recent years, a trend of decrease in HIV has been estimated, especially among IDU and MSWM.
For the HST category, some regions have shown trends of great increase, particularly on the island of Sardegna and the regions of Puglia and Sicilia (Southern Italy).
In 1987, most HIV infections were observed among IDU (39-90%), while in 1992 the MSWM and HST categories made the greatest contribution to the HIV epidemic. (...)
Mots-clés Pascal : SIDA, Virose, Infection, Répartition géographique, Evolution, Epidémiologie, Facteur risque, Incidence, Prévalence, Homme, Italie, Europe, Immunopathologie, Immunodéficit
Mots-clés Pascal anglais : AIDS, Viral disease, Infection, Geographic distribution, Evolution, Epidemiology, Risk factor, Incidence, Prevalence, Human, Italy, Europe, Immunopathology, Immune deficiency
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 99-0147618
Code Inist : 002B05C02D. Création : 16/11/1999.