AJTMH Transactions of the Royal Society of Tropical Medicine and Hygiene
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Am. J. Trop. Med. Hyg., 72(6), 2005, pp. 762-767
Copyright © 2005 by The American Society of Tropical Medicine and Hygiene

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RISK FACTORS ASSOCIATED WITH HEPATITIS C AMONG PATIENTS CO-INFECTED WITH HUMAN IMMUNODEFICIENCY VIRUS: A CASE-CONTROL STUDY

MARIA CÁSSIA JACINTHO MENDES-CORREA, ANTONIO ALCI BARONE, AND REINALDO JOSÉ GIANINI
Casa da AIDS, Division of Infectious and Parasitic Diseases, Hospital das Clinicas, Laboratory of Medical Investigation in Hepatitis, and Laboratory of Medical Investigation in Epidemiology and Statistics, Medical School, University of São Paulo, São Paulo, Brazil

A case-control study was carried out to assess the risk factors associated with hepatitis C in patients infected with human immunodeficiency virus. One hundred eighteen patients tested positive for hepatitis C virus (HCV) and were included as cases, and 117 tested negative for HCV and were included as controls. Information was collected through a questionnaire. The risk factors that showed a significant association with co-infection by multivariate analysis were an age of 30–39 years (odds ratio [OR] = 4.65, 95% confidence interval [CI] = 1.31–16.43), an age of 40–49 years (OR = 6.48, 95% CI = 1.70–24.78), an age > 50 years (OR = 7.50, 95% CI = 1.54–36.68), use of intravenous drugs (OR = 25.46, 95% CI = 4.91–131.88), use of inhaled illicit drugs (OR = 3.56, 95% CI = 1.22–10.44), anal intercourse (OR = 3.93, 95% CI = 1.27–12.13), a sexual partner with a history of liver disease (OR = 5.45, 95% CI = 1.33–22.32), a sexual partner with a history of blood transfusions (OR = 4.79, 95% CI = 0.95–24.19), and sexual partner with a history of intravenous drug use (OR = 3.46, 95% CI = 1.24–9.65).

Received April 10, 2004. Accepted for publication September 7, 2004.

Authors’ addresses: Maria Jacintho Cássia Mendes-Correa, Hospital das Clínicas, Instituto Central, Avenida Enéas de Carvalho Aguiar 255, Quarto Andar, Divisão de Doenças Infecciosas e Parasitárias, São Paulo, Brazil, Telephone: 55-11-3069-6530, Fax: 55-11-3082-0427, E-mail: cassiamc{at}uol.com.br. Antonio Alci Barone, Instituto de Medicina Tropical, Avenida Dr. Enéas de Carvalho Aguiar 470, São Paulo, Brazil, Telephone: 55-11-3085-1601, E-mail: aabarone{at}uol.com.br. Reinaldo José Gianini, Faculdade de Medicina da Universidade de São Paulo, Avenida Doutor Arnaldo 455, São Paulo, Brazil, Telephone: 55-11-3066-7444, E-mail: reinaldo{at}sorocaba.pucsp.br.






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Copyright © 2005 by the American Society of Tropical Medicine and Hygiene.