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[目的]分析甘州区1991～2007年甲型病毒性肝炎流行特征,为预防控制甲肝提供科学依据。[方法]采用描述流行病学方法对1991～2007年甘州区甲肝疫情资料统计分析。[结果]1991～2007年甘州区甲肝共发病2980例,年平均发病率37.30/10万,发病率呈周期性波动,每5～6年出现一次流行,且流行呈散发状态。甲肝发病呈2～4月和10～12月两个发病高峰,职业以农民为主,男性发病多于女性,男女发病比为2.04︰1;发病年龄在1999年以前以儿童为主,之后以青壮年为主。[结论]甘州区甲肝流行呈周期性波动,且发病年龄后移,应适当调整防治策略,在加强小年龄组甲肝防治措施的同时,应加强健康教育和食品卫生监督监测,控制甲肝流行。
[Objective] To analyze the epidemiological characteristics of hepatitis A virus in Ganzhou District from 1991 to 2007 and provide a scientific basis for the prevention and control of hepatitis A. [Methods] Statistical analysis of epidemiological data of Hepatitis A in Ganzhou District from 1991 to 2007 using epidemiological method was described. [Results] A total of 2980 hepatitis A cases were found in Ganzhou district from 1991 to 2007, with an average annual incidence of 37.30 / 100 000. The incidence rate fluctuated periodically with epidemics occurring every 5-6 years, and the epidemic pattern was exuberant. Hepatitis A incidence was from February to April and from October to December the peak incidence of two occupations mainly farmers, the incidence of more men than women, the incidence of men and women was 2.04: 1; age of onset before 1999, mainly children, and then to Mainly young adults. [Conclusion] The epidemic situation of HAV in Ganzhou shows periodic fluctuations and the age of onset is backward. The prevention and cure strategies should be appropriately adjusted. While strengthening the prevention and control measures of HAV in the younger age group, health education and food hygiene supervision and monitoring should be strengthened to control the epidemic of HAV.