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目的 了解北京市乙型病毒性肝炎(简称乙肝)的发病现状和变化趋势,为调整预防控制措施提供参考信息.方法 利用中国疾病预防控制信息系统中乙肝发病数据,采用描述流行病学的方法,对2009-2014年北京市乙肝病例流行病学特征和发病趋势进行分析.结果 2009-2014年,北京市乙肝的发病率呈明显下降趋势,死亡率亦呈现下降趋势.病例现住址多为城乡结合部和近郊区.男性发病率明显高于女性.30-60岁组发病率较高.15岁以下年龄组发病率较低,尤其是2012年以后,该年龄组发病率接近于零.结论 北京市目前所实施的乙肝防控措施显示了良好效果,应继续加强成人和外来常住人口聚集区的乙肝防控工作,继续开展乙肝防控知识宣教,以降低发病率,督促病例及时就医,降低疾病负担.“,”Objective To analyze the epidemiological features and incidence trends of viral hepatitis B and provide reference information for adjusting the prevention and control measures in Beijing.Methods Data of the reported viral hepatitis B cases in Beijing from 2009 to 2014 were collected from China Information System for Disease Control and Prevention.The epidemiological features and incidence trends were analyzed by description epidemiological methods.Results The incidence and mortality of viral hepatitis B decreased from 2009 to 2014.Most of the cases resided in urban-rural fringe and suburban area.The incidence in male was higher than that in female.High incidence was observed in age group of 30-60 years old.The incidence in ＜ 15 years old group was low,and was close to zero after 2012.Conclusions The prevention and control measures of hepatitis B in Beijing were effective.Further prevention and control works,including health education,should be carried out among adults and long-term residents from other provinces for reducing the incidence of the disease and supervising the timely medical treatments so as to reduce the burden of disease.