1990～2004年都兰县病毒性肝炎疫情资料分析

目的]了解都兰县病毒性肝炎（肝炎）的流行趋势和规律,为防治工作提供科学依据。方法]对都兰县1990-2004年报告的肝炎疫情资料进行分析。结果]1990-2004年肝炎年均发病率为85.01/10万;甲肝发病率波动较大,乙肝发病率呈逐年下降趋势;肝炎病例中,乙肝占56.93%。年均发病率男性为94.73/10万,女性为74.81/10万（P〈0.01）;肝炎的高发年龄为10-34岁,其中甲肝为30岁以下,乙肝为20-44岁。结论]都兰县肝炎发病以乙肝为主。

Analysis on Data of Viral Hepatitis Epidemic in Dulan County from 1990 to 2004

Objective]To find out the epidemic trend and regulations of viral hepatitis in Dulan county,and offer the scientific basis for prevention and controlling of the disease.Methods]Data of viral hepatitis epidemic from 1990 to 2004 in Dulan county were analyzed.Results]The annual average morbidity of hepatitis from 1990 to 2004 was 85.01/100000.Morbidity of hepatitis A fluctuated often,and other unclassified hepatitis remains nearly unchanged.Morbidity of hepatitis B decreased from year to year.Among hepatitis patients,the patients with hepatitis B accounted for 56.93% of the total.The annual average incidence in male was 94.73/100 000,74.81/100 000 in female(P<0.01).The incidence of hepatitis was higher in the people at the age from 5 to 44 years old.Of them,the incidence of hepatitis A was higher in the people at the age from 0 to 29 years old,hepatitis B was higher in the people at the age from 20 to 44 years old.Conclusion]Hepatitis B is the main epidemic viral hepatitis in Dulan county.