Objective: To assess the distribution of specific sexually transmitted diseases (STD), including HIV-1 infection, among Italian adolescents with an acute STD and to evaluate these individuals behavioural characteristics.
Methods: The database of Italy's STD Surveillance System was used as the source of data. Data on all STD cases reported among individuals under 20 years of age were analysed.
Results: From September 1990 to December 1997, 57,046 cases of STDs were reported to the surveillance system; 1,757 (3.1%) of these were reported among adolescents, of whom 896 (51.0%) were males. The most commonly reported diseases among males were genital warts (30.7%) and non-gonococcal urethritis (18.5%); among females, the most commonly reported diseases were non-gonococcal vaginitis (39.1%) and genital warts (30.0%). Of the 555 males tested for HIV-1 antibodies, 28 (5.0%) were seropositive; of the 510 females tested, 17 (3.3%) were seropositive. The highest HIV-1 seroprevalence rates were found among intravenous drug users (IDU) (33.3% among male IDUs and 23.8% among female IDUs) and among homosexual males (17.6%).
Discussion and conclusions: In Italy, the impact of STDs among adolescents is not negligible, though the distribution of STDs among this population group differs from the distribution among adults. Moreover, the prevalence of HIV-1 among adolescents with STDs is similar to that among adults with STDs. This study's data suggest the need to further develop STD/HIV prevention programmes that specifically target youths.