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从1985年4月到1986年4月对361名孕妇进行的乙型肝炎流行病学横断面研究以及196名产妇一年随访研究的结果表明,361例孕妇的HBsAg阳性率为2.5%,抗-HBs阳性率为23.8%,抗-HBc阳性率为22.1%,HBV总感染率为31.3%;抗-HBs阳性、抗-HBs和抗-HBc共存阳性者占总阳性者的76.1%,说明人群感染HBV后大多产生了免疫力.1986年4月复查了196例产妇,133名在1985年HBV标记阴性者中有6人获得了HBV标记,HBV新感染率为4.5%;1例为急性乙型肝炎病人,5例为亚临床感染.HBV新感染者的感染途径不明,但医源性传播不能排除.1986年检查的148对夫妇中,男性HBsAg阳性率是女性的3.1倍(6.1%对2.0%),男性单独抗-HBc阳性率是女性的2.3倍(6.1%对2.7%),抗-HBs、抗-HBs和抗-HBc共存以及HBV感染率男女性间都无显著差异.
From April 1985 to April 1986, 361 pregnant women conducted a cross-sectional study of hepatitis B epidemiology and 196 maternal one-year follow-up study results showed that 361 pregnant women HBsAg-positive rate of 2.5%, anti- HBs positive rate was 23.8%, anti-HBc positive rate was 22.1%, HBV total infection rate was 31.3%; anti-HBs positive, anti-HBs and anti-HBc positive accounted for 76.1% of the total positive, indicating that the crowd infection Mostly after the birth of immunity immunity in 1986. In 1986 April review of 196 mothers, 133 in 1985, HBV-negative, 6 were HBV markers, the new HBV infection rate was 4.5%; 1 case of acute B Hepatitis and 5 were subclinical infections, but the route of infection was not known for new infections of HBV but iatrogenic transmission was not excluded.138 of the 148 couples examined in 1986 were 3.1 times more likely to be male (6.1% vs. 2.0 %). The positive rates of anti-HBc in men were 2.3 times higher than those in women (6.1% vs 2.7%). There was no significant difference in anti-HBs, anti-HBs and anti-HBc coexistence and HBV infection between men and women.