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From the Unité de recherche en santé des populations (Poulin, Alary, Godin, Landry, Demers, Morarescu), Centre hospitalier affilié universitaire de Québec; Département de médecine sociale et préventive (Alary), Université Laval, Québec; Institut national de santé publique du Québec (Alary, Lambert, Rochefort, Claessens), Québec and Montréal; Direction régionale de santé publique de Montréal-Centre (Lambert), Montréal; Chaire de recherche du Canada sur les comportements et la santé (Godin), Université Laval, Québec; Faculté des sciences infirmières (Godin, Gagnon), Université Laval, Québec; Laboratoire de Santé publique du Québec (Rochefort, Claessens), Sainte-Anne de Bellevue, Que.
Correspondence to: Dr. Michel Alary, Unité de recherche en santé des populations, Centre hospitalier affilié universitaire de Québec, 1050 chemin Ste-Foy, Québec QC G1S 4L8
Background: To determine the prevalence of HIV and hepatitis C virus (HCV) infections and examine risk factors for these infections among inmates in Quebec provincial prisons.
Methods: Anonymous cross-sectional data were collected from January to June 2003 for men (n = 1357) and women (n = 250) who agreed to participate in the study and who completed a self-administrated questionnaire and provided saliva samples.
Results: The prevalence of HIV infection was 2.3% among the male participants and 8.8% among the female participants. The corresponding prevalence of HCV infection was 16.6% and 29.2%, respectively. The most important risk factor was injection drug use. The prevalence of HIV infection was 7.2% among the male injection drug users and 0.5% among the male non-users. Among the women, the rate was 20.6% among the injection drug users, whereas none of the non-users was HIV positive. The prevalence of HCV infection was 53.3% among the male injection drug users and 2.6% among the male non-users; the corresponding values among the women were 63.6% and 3.5%.
Interpretation: HIV and HCV infections constitute an important public health problem in prison, where the prevalence is affected mainly by a high percentage of injection drug use among inmates.
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