title: [Sero-prevalence and associated risk factors on hepatitis C in Maqiao township, Henan province of China].
abstract: OBJECTIVE
  To describe the prevalence and risk factors of hepatitis C virus (HCV) occurred in Henan province, at the end of 2011.
  
  
  METHODS
  Five villages round Maqiao township, including 5187 residents, were selected for the study. Five-milliliter-blood was drawn from every one of the interviewee. Clinical data including age, gender and anti-HCV antibody was recorded. Patients with positive antibodies against HCV were tested for HCV RNA.
  
  
  RESULTS
  A total number of 5187 people from five villages were studied, with age span from 1 to 97. The average age was 48 years and the sex ratio was 1:1.34. The anti-HCV result showed that the prevalence was 2.27%, with 1-9 age group the lowest (1.55%) and the ≥ 50 year-olds the highest (4.93%). Different villages seemed to have significant differences on the prevalence of HCV, with the highest as 8.68% and the lowest as 0.55%. Under risk factors analysis and distance-infection rates linear regression analysis, data showed that the prevalence might have correlated to the behavior of a certain family-run clinic.
  
  
  RESULTS
  from multivariate analysis indicated that factors as intravenous dropping, intravenous injection and the use of surgery/endoscope were associated with the HCV infection in this village.
  
  
  CONCLUSIONS
  Although the public health care system had been developed for more than ten years, iatrogenic infection was yet responsible for the infection of HCV patients in the rural areas of China that called for further attention paid to the system.
authors.affiliation: Henan Provincial Center for Disease Control and Prevention, Zhengzhou 450016, China.
authors.forename: Yong-Hao
authors.initials: YH
authors.lastname: Guo
authors.forename: Jun-Xing
authors.initials: JX
authors.lastname: Fan
authors.forename: Zhe
authors.initials: Z
authors.lastname: Wang
authors.forename: Ding-Yong
authors.initials: DY
authors.lastname: Sun
authors.forename: Hai-Feng
authors.initials: HF
authors.lastname: Wang
authors.forename: Meng-Lei
authors.initials: ML
authors.lastname: Li
authors.forename: Jia
authors.initials: J
authors.lastname: Liu
authors.forename: Wei-Guo
authors.initials: WG
authors.lastname: Cui
authors.forename: Guo-Hua
authors.initials: GH
authors.lastname: Liu
authors.forename: Wan-Shen
authors.initials: WS
authors.lastname: Guo
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D002681:China / Q000453:epidemiology; D005260:Female; D016174:Hepacivirus / Q000276:immunology*; D006526:Hepatitis C / Q000097:blood / Q000453:epidemiology*; D018937:Hepatitis C Antibodies / Q000097:blood*; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D012367:RNA, Viral / Q000097:blood; D012307:Risk Factors; D016036:Seroepidemiologic Studies; D055815:Young Adult
chemical_list: D018937:Hepatitis C Antibodies; D012367:RNA, Viral