title: [Epidemiological feature of hepatitis B in Zaozhuang City, Shandong Province].
abstract: OBJECTIVE
  To study the prevalence and the epidemiological feature of hepatitis B in the population of Zaozhuang and the seroepidemiology of hepatitis B virus infection.
  
  
  METHODS
  HBsAg, anti-HBs and anti-HBc were detected in 963 sera collected from 312 families by RIA, which were selected by multistage and stratified cluster sampling.
  
  
  RESULTS
  The results indicated that the standardized positive rates of HBsAg, anti-HBs and anti-HBc were 7.08%, 37.56% and 41.35%, respectively and the standardized prevalence rate of hepatitis B virus infection was 44.37%. The positive rate of HBsAg was higher in male subjects and in the urban area groups than those in female subjects (P<0.05) and in rural area groups (P<0.01), respectively. There was no significant difference in the positive rate of HBsAg among all age groups and occupation groups (P>0.05). The positive rates of anti-HBs and anti-HBc and infective rate of hepatitis B virus increased with age. The infective rate of hepatitis B virus was higher in male subjects and in rural area groups than those in female subjects (P<0.05) and in urban area groups (P<0.05), respectively.
  
  
  CONCLUSIONS
  The HBV infective rate of population was higher in Zaozhuang city; measures of prevention and control should be taken actively and effectively.
authors.affiliation: Health and Epidemic Prevention Station of Zaozhuang, Shandong Province 277101, China.
authors.forename: Xingqin
authors.initials: X
authors.lastname: Wang
authors.forename: Dechao
authors.initials: D
authors.lastname: Ding
authors.forename: Baoying
authors.initials: B
authors.lastname: Sun
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D002648:Child; D002675:Child, Preschool; D002681:China / Q000453:epidemiology; D003430:Cross-Sectional Studies; D005260:Female; D019694:Hepatitis B, Chronic / Q000453:epidemiology*; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D012424:Rural Population; D016036:Seroepidemiologic Studies; D017678:Sex Distribution; D014505:Urban Population