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© 2005 American Public Health Association
DOI: 10.2105/AJPH.2003.020388
RESEARCH AND PRACTICE |
Michel Alary is with the Unité de recherche en santé des populations, Centre hospitalier affilié universitaire de Québec and Université Laval, Québec City, Québec. Michel Alary and Bruno Turmel are with the Institut national de santé publique du Québec, Québec and Mon-tréal, Québec. Jean R. Joly is with the Laboratoire de santé publique du Québec, Sainte-Anne-de-Bellevue, Québec. Jean Vincelette is with the Service de microbiologie, Centre hospitalier de l’Université de Montréal, Hôpital St-Luc, Montréal, Québec. René Lavoie is with Action Séro-Zéro, Montréal. Robert S. Remis is with the Department of Public Health Sciences, University of Toronto, Toronto, Ontario.
Correspondence: Requests for reprints should be sent to Jean R. Joly, MD, FRCPC, MSPH, MBA, Laboratoire de santé publique du Québec, 20045 chemin Sainte-Marie, Sainte-Anne-de-Bellevue, Québec H9X 3R5 Canada (e-mail: jean.joly{at}inspq.qc.ca).
Objectives. We studied the prevalence and incidence of hepatitis C virus (HCV) infection in the ongoing Omega Cohort Study of men who have sex with men (MSM).
Methods. From January to September 2001, consenting men (n = 1085) attending a follow-up visit to the ongoing Omega Cohort Study were tested for HCV. If the test results were positive for HCV, we compared them with test results from previous serum samples collected from the time of entry into the original cohort study to determine the time of infection.
Results. HCV prevalence at entry was 2.9% and was strongly associated with injection drug use (32.9% vs 0.3%, P<.0001). Only 1 seroconversion was identified in 2653 person-years of follow-up (incidence rate = 0.038 per 100 person-years). The seroconverter was an active injection drug user who reported needle sharing.
Conclusions. Sexual transmission of HCV among MSM appears to be rare.
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