论文部分内容阅读
目的:了解嘉定区水痘疫情的流行特征,为水痘防控提供依据。方法:运用圆形分布法对2005-2010年水痘疫情进行统计分析,计算角度离散度指标r值、平均角、推算高峰日,并进行雷氏检验。结果:嘉定区2005-2010年水痘总发病数为6091例,年发病率最高在2008年,为109.29/10万;14岁以下的儿童占63.22%。季节性趋势较为明显,r值分别为0.60和0.63(P<0.05),第1发病高峰时间为4月3日,第2发病高峰时间为10月26日。结论:水痘具有明显的季节性发病高峰,学龄前儿童和中小学生是水痘的高发人群,应该在高峰来临前采用学龄前儿童常规接种和在学生中补种相结合的策略开展水痘疫苗的群体水平免疫。
Objective: To understand the epidemic characteristics of chickenpox epidemics in Jiading District and provide basis for prevention and control of chickenpox. Methods: The circular distribution method was used to analyze the epidemic situation of varicella in 2005-2010. The r value, average angle and the peak day of angle variability were calculated, and the Rayleigh test was conducted. Results: The total incidence of chickenpox in Jiading District in 2005-2010 was 6091 cases, the highest annual incidence in 2008 was 109.29 / 100000; children under 14 accounted for 63.22%. The seasonal trend was more obvious with r values of 0.60 and 0.63, respectively (P <0.05), the first peak incidence on April 3 and the second peak on October 26. CONCLUSIONS: Chickenpox has a significant seasonal peak. Preschoolers and primary and secondary school students are high-risk groups for chickenpox. The level of chickenpox vaccine should be established by routine preschool-age vaccination and replanting in school before peak Immune.