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目的运用空间统计学的方法描述并探讨2013年甘肃省甲型病毒型肝炎(甲肝)发病的空间分布特征。方法利用“全国传染病疫情信息网络直报系统”导出2013年甘肃省各区(县)甲肝发病数据、相应区(县)人口数等数据,运用空间统计软件分析甘肃省甲肝发病的空间相关性、空间聚集性特征。结果 2013年甘肃省甲肝报告发病率存在空间自相关性(P<0.001);局部空间自相关分析发现区域内存在“高-高”(或热点区域,主要分布于酒泉市、武威市、甘南州和临夏州部分县区)、“低-低”(或冷点区域,分布于嘉峪关市、张掖市、甘肃东部和南部部分县区)等关联模式的县(区),P<0.05;规则空间扫描结果显示甲肝发病最大可能聚集区为凉州区以及凉州区周边县区(RR=2.580,P=0.001)。结论 2013年甘肃省甲肝报告发病率呈非随机分布,武威市、临夏州和甘南州为甘肃省甲肝发病聚集区域,是甲肝的重点防控地区。
Objective To describe and discuss the spatial distribution of hepatitis A (G) in 2013 in Gansu by using the method of spatial statistics. Methods The data of hepatitis A incidence in all districts and counties of Gansu Province in 2013 and the population of the corresponding districts and counties were derived by using the National Infectious Disease Epworth Information Network Direct Reporting System. The spatial statistical software was used to analyze the spatial correlation of hepatitis A incidence in Gansu Province. Sexual, spatial aggregation characteristics. Results There was a spatial autocorrelation between the reported incidence of hepatitis A in Gansu Province in 2013 (P <0.001). Local spatial autocorrelation analysis showed that there was a “high-high” (or hotspot) region in the region, mainly distributed in Jiuquan, Wuwei, Gannan prefecture and part of Linxia prefecture), and county (district) such as “low - low” (or cold area, distributed in Jiayuguan, Zhangye, eastern and southern parts of Gansu) 0.05; The results of rule space scanning showed that the most likely aggregation area of hepatitis A incidence was Liangzhou District and surrounding counties in Liangzhou District (RR = 2.580, P = 0.001). Conclusion The incidence of hepatitis A reported in Gansu in 2013 was nonrandom distribution. Wuwei City, Linxia Prefecture and Gannan Prefecture were the focal areas of hepatitis A in Gansu province in 2013, which was the key area of hepatitis A prevention and control.