Document 0706 DOCN M9610706 TI Is the human immunodeficiency virus-related Kaposi's sarcoma epidemic coming to an end? Insights from the Tricontinental Seroconverter Study. DT 9601 AU Veugelers PJ; Strathdee SA; Moss AR; Page KA; Tindall B; Schechter MT; Coutinho RA; van Griensven GJ; Municpal Health Service, Department of Public Health, Amsterdam,; The Netherlands. SO Epidemiology. 1995 Jul;6(4):382-6. Unique Identifier : AIDSLINE MED/96039983 AB A decline in the proportion of Kaposi's sarcoma among AIDS cases since the 1980s has been attributed to changes in sexual behavior among homosexual men and a decreasing exposure to a hypothesized Kaposi's sarcoma cofactor. Recent studies have shown that the incidence rate of Kaposi's sarcoma has remained relatively stable, which seems to argue against the hypothesis of a declining exposure to the putative cofactor. To examine this paradox, we evaluated the incidence of Kaposi's sarcoma, using Cox proportional hazard analyses, and performed a simulation to compare incidences of different AIDS outcomes among 407 homosexual men with documented dates of seroconversion. Our data show that men who seroconverted early in the epidemic did not progress faster to Kaposi's sarcoma than men who seroconverted more recently. A lower incidence rate of Kaposi's sarcoma would be expected among the latter group if exposure to the hypothesized cofactor is decreasing over time. The percentage of Kaposi's sarcoma among incident AIDS cases decreased over the years following seroconversion, but not over calendar time. This study demonstrates that the decline in the proportion of Kaposi's sarcoma among AIDS cases should not be interpreted as a decline in the incidence of Kaposi's sarcoma and that there is no evidence that a hypothesized Kaposi's sarcoma cofactor is declining over calendar time. DE Acquired Immunodeficiency Syndrome/*COMPLICATIONS/EPIDEMIOLOGY Age of Onset Cohort Studies Homosexuality, Male Human HIV Seropositivity/*EPIDEMIOLOGY Incidence Male Proportional Hazards Models Prospective Studies Sarcoma, Kaposi's/*EPIDEMIOLOGY/ETIOLOGY Support, Non-U.S. Gov't Support, U.S. Gov't, P.H.S. JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).