title: [HIV and hepatitis B virus co-infection: prevalence and risk factors].
abstract: The objective of this study was to assess the prevalence of hepatitis B virus and possible risk factors for this disease in 401 patients infected with the human immunodeficiency virus, followed at the University Hospital of the Ribeirão Preto Medical School, São Paulo State University. Each participant was submitted to a specific questionnaire and had a blood sample tested for the serologic markers HBsAg, total anti-HBcAg, anti-HBsAg and anti-HCV, using ELISA technique. The overall prevalence of hepatitis B markers was 40.9%, with 8.5% for HBsAg, 39.7% for total anti-HBcAg and 5.5% for anti-HBsAg. The variables that showed association with HBV were: age, higher education level, history of jaundice, time spent in prison, having a homosexual partner and positive markers for anti-HCV. Co-infection HBV/HCV was present in 20.4% of the participants.
authors.affiliation: Departamento de Medicina Social, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP.
authors.forename: Milta Gomes de
authors.initials: MG
authors.lastname: Souza
authors.forename: Afonso Dinis Costa
authors.initials: AD
authors.lastname: Passos
authors.forename: Alcyone Artioli
authors.initials: AA
authors.lastname: Machado
authors.forename: José Fernando de Castro
authors.initials: JF
authors.lastname: Figueiredo
authors.forename: Luis Everton
authors.initials: LE
authors.lastname: Esmeraldino
mesh_terms: D000328:Adult; D017677:Age Distribution; D015415:Biomarkers / Q000097:blood; D001938:Brazil / Q000453:epidemiology; D005260:Female; D015658:HIV Infections / Q000453:epidemiology*; D006509:Hepatitis B / Q000175:diagnosis / Q000453:epidemiology*; D006512:Hepatitis B Core Antigens / Q000097:blood*; D006514:Hepatitis B Surface Antigens / Q000097:blood*; D006801:Humans; D008297:Male; D015995:Prevalence; D012307:Risk Factors; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires
chemical_list: D015415:Biomarkers; D006512:Hepatitis B Core Antigens; D006514:Hepatitis B Surface Antigens