2004-2010年洛阳市乙型病毒性肝炎疫情分析

目的了解我国传染病疫情网络直报以来洛阳市乙型病毒性肝炎的流行特征,为制定控制乙肝疫情策略提供依据。方法根据疫情网络数据和专题调查资料对2004-2010年洛阳市的乙肝疫情资料进行描述性分析。结果 2004-2010年累计报告乙肝病例73 078例,占洛阳市所有报告传染病的36.97%。年平均发病率为195.28/10万,发病年龄集中于15岁～55岁,占发病总数的84.58%;除20~和25~年龄组外,各年龄组发病均为男性高于女性;职业发病分布前3位的是农民(53.87%)、工人(11.65%)、学生(11.59%);高发县区主要为瀍河区(平均发病率415.59/10万)、吉利区(413.15/10万)和伊川县(220.41/10万)。病例分类中,急性乙肝6118例,占7.30%,慢性乙肝31326例,占37.43%,未分类乙肝46239例,占55.25%。结论2004-2010年洛阳市乙肝疫情处于高位波动状态,2004-2007年持续上升,从2007年到2010年逐渐下降,下降幅度低于上升幅度。对乙肝疫情上升贡献最大的是慢性乙肝和未分类乙肝病例,急性乙肝在7年报告中持续在较低报告水平,应提高基层医疗机构对乙肝的诊断分类水平,提高乙肝报告质量。

Analysis on Reported Cases of Hepatitis B in luoyang From 2004 to 2010

objective To investigate the epidemiological characteristics of hepatitis B in Luoyang from 2004 to 2010 and provide a scientific basis for prevention.Methods According to the data of reported Cases of hepatitis B in Luoyang from 1999 to 2005 and special survey data,the epidemiological distribution characteristic of hepatitis B was described.Results 73 078 cases of hepatitis B were reported in Luoyang in 2004-2010,accounting for 6.97 % of reported cases of all infectious diseases in luoyang city.The mean incidence of hepatitis B was 195.28/100,000.The main population of hepatitis B was 15 ~ 55 years old(84.58 %).The number of males cases was more than females in diferent ages except those cases of 20 ~ and 25 ~ age groups.As for occupations,farmers were easiest being infected(53.87 %),and the next were workers(11.65 %) and students(11.59 %).The mainly high-risk counties/districts were Chanhe district(average incidence 415.59/100,000),Jili district(413.15/100,000) and Yichuan county(220.41/100,000).Of all cases,6 118 cases were acute hepatitis B(7.30 %),31 326 cases were chronic hepatitis B(37.43 %),46 239 cases were unclassified hepatitis B(55.25 %).Conclusion The reportedincidence of hepatitis B in luoyang city was high and fluctuant,keeping rising from 2004 to 2007 and decreasing from 2007 to 2010.Reported hepatitis B were mainly chronic cases and un-classification,which was the leading factor resulting in increasing of reported incidence of hepatitis B.The incidence of acute hepatitis B has been low in the passed 7 years.The diagnostic level of physicians at basiclevel medical institutions and the report quality of hepatitis B should be improved.