Gou Faxiang, Liu Xinfeng, Liu Dongpeng, Ren Xiaowei, Li Juansheng, Liu Haixia, Zheng Yunhe, Wei Kongfu, Yang Xiaoting, Cheng Yao, Meng Lei
Department of Acute Infectious Diseases Control and Prevention, Institute for Communicable Disease Control and Prevention, Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China.
Institute of Epidemiology and Health Statistics, School of Public Health, Lanzhou University, Lanzhou 730000, China.
Zhonghua Liu Xing Bing Xue Za Zhi. 2016 Jan;37(1):85-9. doi: 10.3760/cma.j.issn.0254-6450.2016.01.018.
To understand the hot/cold spots and the spatial-temporal clustering of hepatitis B in Gansu province during 2009-2014 by using spatial statistics, and provide scientific evidence for the prevention and control of hepatitis B.
The spatial hot/cold spots and its trend, and the time frame and areas of its spatial-temporal clustering of hepatitis B in Gansu were analyzed by using the county specific incidence of hepatitis B from 2009 to 2014 and spatial statistical software GeoDa and SatScan.
The incidences of hepatitis B from 2009 to 2014 in Gansu were spatial autocorrelated respectively. Local G scan statistics indicated that the number of hot spots was in decline in Hexi area, while the hot spots was in increase in Linxia Hui autonomous prefecture and Gannan Tibetan autonomous prefecture. There was no obvious pattern in cold spots. Temporal-spatial scan statistics showed that the areas with high hepatitis B incidence most likely clustered in Hexi area during 2009-2011, and the areas with low hepatitis B incidence most likely clustered in eastern Gansu during 2012-2014.
The spatial and temporal clustering of hepatitis B was observed in Gansu from 2009 to 2014. The number of hot spots in Hexi area was in decline, while the numbers of hot spots in Linxia and Gannan were in increase, suggesting that the hepatitis B control and prevention in these areas should be strengthened.
运用空间统计学方法了解2009 - 2014年甘肃省乙型肝炎的热点/冷点及时空聚集情况，为乙型肝炎的防控提供科学依据。
利用2009 - 2014年甘肃省各县乙型肝炎发病率，借助空间统计软件GeoDa和SatScan分析甘肃省乙型肝炎的空间热点/冷点及其趋势、时空聚集的时间框架和区域。
2009 - 2014年甘肃省乙型肝炎发病率分别存在空间自相关性。局部G扫描统计显示，河西地区热点数量呈下降趋势，而临夏回族自治州和甘南藏族自治州热点数量呈上升趋势。冷点无明显规律。时空扫描统计显示，2009 - 2011年乙型肝炎高发病率地区最有可能聚集在河西地区，2012 - 2014年乙型肝炎低发病率地区最有可能聚集在甘肃东部。
2009 - 2014年甘肃省乙型肝炎存在时空聚集现象。河西地区热点数量下降，而临夏和甘南地区热点数量上升，提示应加强这些地区的乙型肝炎防控工作。
