宁波市1991～2000年甲、乙型病毒性肝炎流行特征

The Epidemic Characteristics of Viral Hepatitis A and B from 1991 to 2000 in Ningbo City

目的 了解宁波市自 1991年对病毒性肝炎进行分型报告以来 ,甲、乙型病毒性肝炎流行特征。方法 对 1991～ 2 0 0 0年甲、乙型肝炎疫情资料进行综合分析。结果 宁波市 1991～ 2 0 0 0年甲型肝炎平均报告发病率为 5 2 63 / 10万 ,死亡率为 0 0 3 / 10万 ,病死率为 0 0 5 % ;甲型肝炎发病呈缓慢下降趋势。乙型肝炎平均报告发病率为 42 5 5 / 10万 ,死亡率为 0 17/ 10万 ,病死率为 0 40 % ;10年间发病率相对平稳。结论 病毒性肝炎发病呈明显下降趋势 ,影响宁波市病毒性肝炎的发病高峰主要是甲型肝炎。

Objective To analyze the epidemic characteristics of viral hepatitis A and B in Ningbo since the viral hepatitis typing was reported in 1991. Methods The monitoring data of hepatitis A and B from 1991 to 2000 were descriptively analyzed. Results The average incidence rate of hepatitis A was 52 63 per 100,000,with the mortality 0 03 per 100 , 000, the fatality rate 0 05% and a slow descending tendency of incidence was observed. The average incidence rate of hepatitis B was 42 55 per 100 , 000,with the mortality 0 17 per 100 , 000, the fatality rate 0 40% and the incidence was relatively stable. Conclusions There is a significantly descending tendency in the incidence of viral hepatitis. It is viral hepatitis A that plays an important role in the high incidence of viral hepatitis in Ningbo.