浙江省镇海区2005—2014年戊型肝炎发病流行病学分析

Incidence of hepatitis E in Zhenhai district of Ningbo city,2005-2014

目的分析2005-2014年浙江省年镇海区戊型肝炎发病情况，为戊肝的防控策略制定提供参考依据。方法采用描述流行病学的方法对镇海区2005-2014年戊肝发病情况进行分析。结果2005-2014年镇海区戊肝报告病例数为141例，年平均报告发病率为2．06／10万，报告发病率最高的为2014年（5．02／10万），病例数主要集中在2—4月份，占总报告病例数的38．30％（54／141），发病年龄主要集中在30—70岁，占总报告病例数的87．94％（124／141），职业构成以农民为主，占了总报告病例数的36．17％（51／141），男、女性别比为2．38：1。结论未采取干预措施的情况下，戊肝发病每3～4年出现一个高峰，且报告病例数整体呈现上升趋势。

Objective To analyze the epidemic characteristics of hepatitis E（HE） in Zhenhai district of Ningbo municipality and to provide a basis for implementing preventive plan. Methods Descriptive epidemiological method was adopted to analyze the data on reported HE cases in Zherthai district from 2005 through 2014. Results During the 10- year period,totally 141 hepatitis E cases was reported;the average annual incidence of HE was 2. 06/100 000 and the annual incidence was the highest （5.02/100 000） in 2014. More HE cases （36. 17 % ） were reported from February to April in a year and the majority（87. 94% ） of the reported cases were aged 30 -70 years;of the reported cases,38. 30% were farmers and the male to female ratio of the reported cases was 2. 38： 1. Conclusion Under the condition of without specific intervention, the incidence of hepatitis E showed an increasing trend and incident peaks every 3 to 4 years between 2005 and 2014 in Zhenhai district of Ningbo municipality.