Prevalence of Hepatitis B Virus infection Markers Among a Working Population in a Coastal City of Yantai, China

概要

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Three markers of hepatitis B virus (HBV) infection, HBsAg, anti-HBs and anti-HBc, were investigated in the sera from 426 factory workers of both sexes in a coastal city of Yantai in China. The investigation showed that the rate of those positive to HBsAg was 25.4% (25.9% in men and 24.6% in women), and that the rate when two sexes were combined was highest (i.e., 29.5%) at the ages of 20s followed by gradual decrease at higher ages (below 20%). The over-all HBV infection rate as calculated by those positive to any of the three markers studied was 70.4%. Comparison with rates reported in literature indicated that the rate of HBsAgpositive cases in the present study are probably among the highest values in China, whereas over-all rate of HBV infection was almost comparable to the values for other provinces. It should be added that other reports on other parts of Shandong Province describe HBsAg+ prevalence of about 6%. No explanation is currently available for the high HBsAg prevalence among the study population. J Epidemiol, 1991 ; 1 : 11-17.
日本疫学会の論文