摘要
目的运用反距离加权插值法（IDW）研究江苏省地方性氟中毒在空间上的分布态势，探讨其在地方性氟中毒监测中的应用价值。方法利用1982—1985年江苏省地方性氟中毒的调查数据，建立江苏省地方性氟中毒的地理信息数据库。以江苏省县界数字地图为背景，在AreView3．3软件的支持下，利用地理信息系统（GIS）中的IDW，建立江苏省水氟和氟斑牙患病率的空间分布预测图，并与实际调查结果相比较。结果利用IDW得到江苏省水氟和氟斑牙患病率的空间分布预测图。通过与实际调查结果的比较，表明运用IDW得到的空间分布预测图是真实、准确而详细的。结论在地方性氟中毒监测中，利用IDW能够较好地通过抽样调查地区的氟中毒数据推断总体。估计江苏省地方性氟中毒的分布特征。
Objective To use inverse distance weighting（IDW） in studying the distribution of endemic fluorosis in Jiangsu Province and evaluate the value of IDW in endemic fluorosis surveillance. Methods A geographic information system（GIS） database of endemic fluorosis was established in Jiangsu Province from the data of endemic fluorosis surveys conducted during 1982 - 1985. With the help of Arc View 3.3 system, IDW was applied to forecast the distribution of fluoride concentration in water and the distribution of the prevalence rate of dental fluorosis in Jiangsu Province based on the electronic map of Jiangsu Province. Results IDW was applied to forecast the distribution of endemic fluorosis in Jiangsu Province. By comparing with the result of endemic investigation in the 1980＇s, the forecasting was proven to be accurate, exact and detailed. Conclusion With the application of IDW and stratified sampling, it is feasible to describe the spatial distribution of endemic fluorosis in Jiangsu Province in endemic fluorosis surveillance.
出处
《中国地方病学杂志》
CAS
CSCD
北大核心
2009年第1期97-100,共4页
Chinese Jouranl of Endemiology
关键词
氟化物中毒
地理信息系统
反距离加权插值法
Fluoride poisoning
Geographic information systems
Inverse distance weighting
