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目的了解2005-2012年南昌市乙型肝炎(简称乙肝)发病的时空聚集性特征,为当地乙肝防制工作提供新的思路。方法采用2005-2012年南昌市乙肝疫情报告数据,以疫情信息中的现住详细地址和诊断日期分别作为地理和时间变量,建立具有时空属性的数据库,通过SaTScan 9.1.1软件分析南昌市乙肝发病的时空聚集性特征。结果回顾性时-空扫描分析显示,2005-2012年南昌市乙肝的发病不是随机的,具有明显的时空聚集特征。研究期间,进贤县均属于一类聚集区;西湖区在2006、2011、2012三个年度均为二类聚集区,其他区县在个别年度也有时空聚集现象。结论南昌市2005-2012年乙肝的发病分布存在一定的时空聚集性,当地卫生机构应给予进一步关注。
Objective To understand the spatiotemporal aggregation characteristics of hepatitis B in Nanchang city from 2005 to 2012, and to provide a new idea for the prevention and control of hepatitis B in Nanchang. Methods The epidemiological data of hepatitis B in Nanchang City from 2005 to 2012 were used to establish the database with spatio-temporal attributes using the present address and date of diagnosis in the outbreak information as geographic and temporal variables. The incidence of hepatitis B in Nanchang was analyzed by SaTScan 9.1.1 software The spatial and temporal clustering characteristics. Results The retrospective time-space-scan analysis showed that the incidence of hepatitis B in Nanchang City from 2005 to 2012 was not random and had obvious spatial-temporal aggregation characteristics. During the study period, Jinxian County belonged to a type of gathering area; Xihu District was a second type of gathering area in 2006, 2011 and 2012, and other districts and counties also had time-space aggregation phenomenon in individual years. Conclusion The distribution of hepatitis B in Nanchang between 2005 and 2012 has certain spatial and temporal aggregation, and the local health agencies should pay more attention to it.