title: Seroprevalence of hepatitis C and factors associated with this in crack users.
abstract: OBJECTIVE
  to investigate the seroprevalence of hepatitis C in crack users in Piauí.
  
  
  METHODS
  seroepidemiological survey, undertaken in the Psycho-Social Care Centers for Drugs and Alcohol (CAPS AD) in Piauí in the period December 2011 to May 2012. A questionnaire was administered and blood samples were collected for serological research. Fisher's exact test and the Mann-Whitney test were used, with a level of significance of (p<0.05).
  
  
  RESULTS
  the prevalence of Anti-HCV was 05 (1.4%) and 04 (1.1%) for the RNA-HCV. There was a statistically significant association between hepatitis C (serological marker RNA-HCV) and age, being resident at home, length of use of crack, interruption of the use of crack, and the habit of sharing the crack pipes.
  
  
  CONCLUSIONS
  the findings support the need to implement health policies aimed at crack users, due to the accelerated process of physical and psychological deterioration to which these are subject.
authors.affiliation: Fundação Municipal de Saúde de Teresina, TeresinaPI, Brazil.
authors.forename: Laís Carvalho de
authors.initials: LC
authors.lastname: Sá
authors.affiliation: Universidade Federal do Piauí, TeresinaPI, Brazil.
authors.forename: Telma Maria Evangelista de
authors.initials: TM
authors.lastname: Araújo
authors.affiliation: Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de JaneiroRJ, Brazil.
authors.forename: Rosane Harter
authors.initials: RH
authors.lastname: Griep
authors.affiliation: Universidade Federal do Piauí, TeresinaPI, Brazil.
authors.forename: Viriato
authors.initials: V
authors.lastname: Campelo
authors.affiliation: Universidade Federal do Piauí, TeresinaPI, Brazil.
authors.forename: Claudete Ferreira de Souza
authors.initials: CF
authors.lastname: Monteiro
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D019970:Cocaine-Related Disorders / Q000150:complications; D016578:Crack Cocaine; D003430:Cross-Sectional Studies; D005260:Female; D006526:Hepatitis C / Q000097:blood* / Q000150:complications / Q000453:epidemiology*; D018937:Hepatitis C Antibodies / Q000097:blood*; D006801:Humans; D008297:Male; D008875:Middle Aged; D016036:Seroepidemiologic Studies; D055815:Young Adult
chemical_list: D016578:Crack Cocaine; D018937:Hepatitis C Antibodies