title: [Ambulatorial prevalence of hepatitis B and C markers in patients with human immunodeficiency virus infection in a general hospital].
abstract: BACKGROUND
  Hepatitis B and C viruses and human immunodeficiency virus share the same route of transmission, and the prevalence of HBV and HCV infection in patients infected with HIV is greater than it is in the general population.
  
  
  OBJECTIVE
  To determine the prevalence of hepatitis B and C markers in a population of patients with HIV as well as the risk factors involved.
  
  
  METHODS
  From 5,870 registration forms of patients with HIV of an Infectology Unit, 587 were randomly selected. From these, the 343 which had investigated the presence of any hepatitis B (HBsAg, anti-HBc or anti-HBs) or C (anti-HCV) marker were retrospectively analyzed.
  
  
  RESULTS
  HBsAg was positive in 14/306 (4.6%), anti-HBs was positive in 40/154(26.0%), and anti-HBc in 79/205 (38.5%). The anti-HCV test was reactive in 126/330 (38.2%). HBV and HCV co-infection was observed in 7 of the 296 patients who had both HBsAg and anti-HCV tests (2.4%). For those who were HBsAg positive, the main exposure factor was homosexual intercourse (50.0%). For those who were anti-HCV reactive, the main risk factor was intravenous drug use (75.3%). In the HIV mono-infected (185 patients), the most prevalent exposure risk factor was promiscuous heterosexual practices or sexual intercourse with a spouse infected with HIV (83 patients - 44.9%).
  
  
  CONCLUSIONS
  In our environment HBV-HIV and HCV-HIV co-infections are frequent, a greater relevance being observed in the association between HCV and HIV.
authors.forename: Cristiane Valle
authors.initials: CV
authors.lastname: Tovo
authors.forename: Diogo Edele
authors.initials: DE
authors.lastname: Dos Santos
authors.forename: Angelo Zambam
authors.initials: AZ
authors.lastname: de Mattos
authors.forename: Paulo Roberto Lerias
authors.initials: PR
authors.lastname: de Almeida
authors.forename: Angelo Alves
authors.initials: AA
authors.lastname: de Mattos
authors.forename: Breno Riegel
authors.initials: BR
authors.lastname: Santos
mesh_terms: D000328:Adult; D015415:Biomarkers / Q000097:blood; D001938:Brazil / Q000453:epidemiology; D005260:Female; D015658:HIV Infections / Q000453:epidemiology*; D016174:Hepacivirus / Q000276:immunology*; D006509:Hepatitis B / Q000175:diagnosis / Q000453:epidemiology*; D006510:Hepatitis B Antibodies / Q000097:blood; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006515:Hepatitis B virus / Q000276:immunology*; D006526:Hepatitis C / Q000175:diagnosis / Q000453:epidemiology*; D018937:Hepatitis C Antibodies / Q000097:blood; D006801:Humans; D008297:Male; D015995:Prevalence; D012189:Retrospective Studies; D012307:Risk Factors
chemical_list: D015415:Biomarkers; D006510:Hepatitis B Antibodies; D006514:Hepatitis B Surface Antigens; D018937:Hepatitis C Antibodies