1997～2006年子长县乙型病毒性肝炎疫情资料分析

Data Analysis of the Epidemic of Viral Hepatitis B in Zichang County from 1997 to 2006

[目的]了解子长县乙型病毒性肝炎（乙肝）发病情况及流行病学特征,评价防治工作效果,为制定防治策略提供依据。[方法]对1997-2006年乙肝疫情资料进行分析。[结果]1997-2006年子长县累积报告乙肝病人638例,年均发病率为27.22/10万,呈逐年上升趋势。年均发病率,男性为34.25/10万,女性为19.63/10万（P〈0.01）;0-9岁为17.41/10万,10-19岁为29.37/10万,20-39岁为32.23/10万,40-59岁27.59/10万,60岁以上为19.18/10万（P〈0.01）;农村为29.08/10万,城区为22.57/10万（P〈0.01）。638例病人中,农民占47.96%。[结论]子长县乙肝疫情呈大幅度上升趋势,大年龄组儿童和青壮年是高发人群。

[Objective]To understand the prevalence and epidemiological characteristic of viral hepatitis B in Zichang county, evaluate the effect on prevention and control, provide scientific basis for prevention and control strategy. [Methods] Data of the epidemic of hepatitis B from 1997 to 2006 were analyzed. [Results]638 hepatitis B cases were reported from 1997 to 2006 in the county. The average yearly incidence was 27.22/100 000 and it was going up year after year. The averageyearly incidence was 3 4. 2 5 / 1 0 0 0 0 0 in male and 1 9. 6 3 / 10 0 0 0 0 in female （ P 〈 0. 01 ）. The morbidity was 17. 4 1 / 100 000,29.37/100 000,32.23/100 000,27.59/100 000 and 19.18/100 000,among the people aged from 0 to 9,10 to 19, 20 to39,40to59andover60respectively（P〈0. 01）. The morbidity was29. 08/100000inruralareasand22. 57/ 100 000 in urban district（ P d0.01）. Of the 638 cases, peasants accounted for 47.96 %. [Conclusion]The epidemic of hepatitis B in Zicbang county was going up. The highest incidence was among elder children and young people.