| Application of GIS-Based Spatial Filtering Method for Neural Tube Defects Disease Mapping |
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| 引用本文： | CHI Wenxue WANG Jinfeng LI Xinhu ZHENG Xiaoying LIAO Yilan. Application of GIS-Based Spatial Filtering Method for Neural Tube Defects Disease Mapping[J]. 武汉大学学报:自然科学英文版, 2007, 12(6): 1125-1130. DOI: 10.1007/s11859-007-0097-6 |
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| 作者姓名： | CHI Wenxue WANG Jinfeng LI Xinhu ZHENG Xiaoying LIAO Yilan |
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| 作者单位： | [1]School of the Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China [2]Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China [3]Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361003, Fujian, China [4]Institute of Population Research, Peking University, Beijing 100871, China |
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| 基金项目： | Supported by the National Basic Reserch Program of China （973 Program） （2001CB5103） and the National Natural Science Foundation of China （40471111 and 70571076）. |
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| 摘 要： | This study is to assess the prevalence rates spatial pattern of neural tube defects with geographic information system and spatial filtering technique. A total of 80 infants who diagnosed from neural tube defects in the area being studied between 1998 and 2001 were analyzed. Firstly, the geographic information system （GIS） software ArcGIS was used to map the crude prevalence rates. Secondly, the data were smoothed by the method of spatial filtering. We evaluated that the effect of changes in spatial filtering radius size was assessed by creating maps based on various filtering radius sizes. The 3 miles or larger filtering radius gives better section variability than the 2 and 2.5 miles or smaller ones. The maps produced by the spatial filtering technique indicate that prevalence rates in the villages in the southeastern region are to produce higher prevalence than that in the other regions. The smoothed maps based on Heshun County display a more adequate data representation than the raw prevalence rate map.
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| 关 键 词： | 缺陷产生 神经管缺陷 地理信息系统 空间频率识别 |
| 文章编号： | 1007-1202（2007）06-1125-06 |
| 收稿时间： | 2007-04-23 |
| 修稿时间： | 2007-04-23 |
Application of GIS-based spatial filtering method for neural tube defects disease mapping |
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| Chi Wenxue,Wang Jinfeng,Li Xinhu,Zheng Xiaoying,Liao Yilan. Application of GIS-based spatial filtering method for neural tube defects disease mapping[J]. Wuhan University Journal of Natural Sciences, 2007, 12(6): 1125-1130. DOI: 10.1007/s11859-007-0097-6 |
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| Authors: | Chi Wenxue Wang Jinfeng Li Xinhu Zheng Xiaoying Liao Yilan |
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| Affiliation: | (1) School of the Earth Sciences and Resources, China University of Geosciences, Beijing, 100083, China;(2) Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China;(3) Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361003, Fujian, China;(4) Institute of Population Research, Peking University, Beijing, 100871, China |
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| Abstract: | This study is to assess the prevalence rates spatial pattern of neural tube defects with geographic information system and spatial filtering technique. A total of 80 infants who diagnosed from neural tube defects in the area being studied between 1998 and 2001 were analyzed. Firstly, the geographic information system (GIS) software ArcGIS was used to map the crude prevalence rates. Secondly, the data were smoothed by the method of spatial filtering. We evaluated that the effect of changes in spatial filtering radius size was assessed by creating maps based on various filtering radius sizes. The 3 miles or larger filtering radius gives better section variability than the 2 and 2.5 miles or smaller ones. The maps produced by the spatial filtering technique indicate that prevalence rates in the villages in the southeastern region are to produce higher prevalence than that in the other regions. The smoothed maps based on Heshun County display a more adequate data representation than the raw prevalence rate map. Biography: CHI Wenxue(1978–), male, Ph.D. candidate, research direction: geographic information system application and spatial data analysis. |
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| Keywords: | birth defects neural tube defects neural tube defects (NTDs) geographic information system (GIS) spatial filtering China |
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