Decreasing Age at Infection for Homosexually Acquired HIV in Italy: Results of a Back-Calculation Analysis

The age-specific incidence of homosexually acquired HIV in Italy was examined, based on 3918 AIDS cases diagnosed by the end of 1994 and reported by the end of 1995 through the national surveillance system. Using a smoothed back-calculation analysis, the estimated median age at infection decreased o...

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Bibliographic Details
Published in:European journal of epidemiology 1997-12, Vol.13 (8), p.963-966
Main Authors: Marschner, Ian C., Bosch, Ronald J.
Format: Article
Language:English
Subjects:
Acquired immune deficiency syndrome
Acquired Immunodeficiency Syndrome - epidemiology
Adult
Age Distribution
Age Factors
Age groups
AIDS
AIDS/HIV
Biological and medical sciences
Brief Report
Cohort Studies
Confidence Intervals
Developed countries
Developed Countries - statistics & numerical data
Disease Progression
Epidemics
HIV
HIV infections
HIV Infections - epidemiology
HIV Infections - transmission
Homosexuality
Homosexuality, Male - statistics & numerical data
Human immunodeficiency virus
Humans
Immunodeficiencies
Immunodeficiencies. Immunoglobulinopathies
Immunopathology
Incidence
Industrialized nations
Infections
Italy - epidemiology
Male
Male homosexuality
Medical sciences
Population Surveillance
Surveillance
Trends
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Summary:The age-specific incidence of homosexually acquired HIV in Italy was examined, based on 3918 AIDS cases diagnosed by the end of 1994 and reported by the end of 1995 through the national surveillance system. Using a smoothed back-calculation analysis, the estimated median age at infection decreased over time, and HIV incidence among younger age groups peaked much later than among older age groups. These results support recent findings from other developed countries, and suggest that measures for preventing homosexual transmission of HIV are best targeted at younger age groups.
ISSN:0393-2990
1573-7284
DOI:10.1023/A:1007422127135