1990—2011年潍坊市乙型肝炎流行趋势分析

Analysis on the epidemiological trend of hepatitis B from 1990 to 2011 in Weifang city

目的分析1990-2011年潍坊市乙型病毒性肝炎（乙肝）流行规律，为预防和控制乙肝提供依据。方法用描述性流行病学方法对1990-2011年潍坊市乙肝疫情资料进行分析。结果1990-2011年潍坊市报告乙肝病例16461例，年均发病率为8．79／10万，发病率最高为16．11／10万，最低为5．01／10万。各地区均有发病，其中寿光市、青州市、临朐县发病率相对较高；无明显的季节性，男女比例为2．22：1。乙肝病例以15-59岁人群为主，15岁以下人群年发病率呈逐年下降趋势。结论15-59岁的成人是潍坊市乙肝发病的主要对象，15岁以下儿童乙肝发病率呈逐年下降趋势。应尽快制定成人乙肝疫苗免疫策略，以抑制乙肝高发病状态。

Objective To describe the incidence disciplines of hepatitis B from 1990 to 2011 and provide a basis for the prevention and control of hepatitis B. Method Descriptive epidemiological method was used to analyze epidemiological data of hepatitis B from 1990 to 2011. Results 16 461 hepatitis B cases were reported from 1990 to 2011. The average an- num incidence rate was 8.79/100 000, while the highest and lowest incidence rate were 16. 11/100 000 and 5.01/ 1 000 000, respectively. There were cases in all regions, and there was relative high incidence in Shouguang, Qingzhou and Linqu. There was no obvious seasonal feature about incidence of hepatitis B. The groups from 15 to 59 years old accounted for the majority of reported cases of hepatitis B. There was downward trend under 15 years old age groups. Conclusions The groups aged 15 to 59 are the primary target of hepatitis B incidence. There is downward trend under 15 years old. Hep- atitis B vaccine strategies of adults should be carried out to suppress high prevalence of hepatitis B status.