title: [The prevalence of infection by the hepatitis B, C and human immunodeficiency viruses in drug users].
abstract: OBJECTIVE
  Estimate the prevalence of the hepatitis B (HBV) infection, hepatitis C (HCV) and human immunodeficiency virus (HIV) and its coexistence in intravenous drug users, in order to start afterwards a vaccination and sanitary training programmes.
  
  
  METHODS
  Intravenous drug users attended in a health centre and in the drugs addition deshabitation centre of reference located in a marginal urban quarter. Patients were detected from the health centre. During one year (June 1995-1996) facts were collected. The age, sex, consumption, type, administration mechanism and also the described serologies were analysed. It has been carried out descriptive statistics and applied the chi-square [correction of square-ji] test.
  
  
  RESULTS
  A study of 355 patients, 295 (83.1%) males and 60 (16.9%) females was carried out. The average age was 28.6 years (SD = 6.5). All serologies in 113 (31.8%) were available. The positive serologies for HIV, 64.6% for HBV and 64.4% had 71.1% for HCV. The three of them coexisted in a 35.4% between HIV, 39.1% of them were VHB and 88% VHC. 49.1% were VHB and VHC. The infection from any of the three virus was related with intravenous administration mechanism, but not with sex or drug type.
  
  
  CONCLUSIONS
  The infection caused from the virus above mentioned is frequent in drug users. A not negligible percentage of patients could benefit from the hepatitis B vaccine administration (67.6%) or other preventive measures.
authors.affiliation: ABS Dr. Pujol i Capsada, El Prat de Llobregat, Barcelona.
authors.forename: X
authors.initials: X
authors.lastname: Jiménez Fàbrega
authors.forename: A
authors.initials: A
authors.lastname: Carballo Almeida
authors.forename: C
authors.initials: C
authors.lastname: Batalla Martínez
authors.forename: E
authors.initials: E
authors.lastname: Comín Bertrán
authors.forename: A M
authors.initials: AM
authors.lastname: Cuenca Oliva
authors.forename: A
authors.initials: A
authors.lastname: Ezpeleta García
authors.forename: E
authors.initials: E
authors.lastname: López Gonzalo
authors.forename: N
authors.initials: N
authors.lastname: Parellada Esquius
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D003430:Cross-Sectional Studies; D005260:Female; D015658:HIV Infections / Q000453:epidemiology*; D015497:HIV-1; D006509:Hepatitis B / Q000453:epidemiology*; D006526:Hepatitis C / Q000453:epidemiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D017678:Sex Distribution; D013030:Spain / Q000453:epidemiology; D019966:Substance-Related Disorders / Q000150:complications* / Q000453:epidemiology; D014505:Urban Population / Q000706:statistics & numerical data
vernacular_title: Prevalencia de la infección por los virus de la hepatitis B, C e inmunodeficiencia humana en usuarios de drogas.