Spatial analysis of gastric cancer morbidity in regions of rapid urbanization: a case study in Xiamen,China |
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| Authors: | JiLai Liu XinHu Li Tao Lin Long Dai GuoQin Zhang ChaoSheng Zhang Hong Ye Vee Gibson QianJun Zhao |
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| Institution: | 1.Key Lab of Urban Environment and Health, Institute of Urban Environment,Chinese Academy of Sciences,Xiamen,China;2.College of Resources Science and Technology,Beijing Normal University,Beijing,China;3.Xiamen Center for Diseases Control and Prevention,Xiamen,China;4.GIS Centre, Ryan Institute,National University of Ireland,Galway,Ireland;5.Ningbo Urban Environment Observation and Research Station,Chinese Academy of Sciences,Ningbo,China |
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| Abstract: | This paper is purposed to detect the spatial laws of gastric cancer in the rapid urbanization area and analyze relationships between gastric cancer and urbanization. Gastric cancer incidence data in Xiamen between 2006 and 2009 was collected from Xiamen CDC (Centre of Disease Control and Prevention). Urbanization age of Xiamen Island was calculated from remote images and terrain maps. Analysis results showed that 995 gastric cancer cases, accounting for 61.64 % was in Xiamen island, compared with 619 cases, accounting for 38.36 % outside. The average gastric cancer incidence was 32.98/1000,000 in Xiamen Island, compared to 16.13/1000,000 outside. The top ten sub-districts of gastric cancer all located in Xiamen Island, and urban areas have as more than twice gastric cancer incidence as rural area, with 28.62/100,000. The most likely spatial cluster of gastric cancer was Xiamen Island. Correlation analysis results indicated the urbanization age and spatial cluster degree had a significantly positive correlation relationship. Rapid urbanization in Xiamen changed the environment, namely acquired factors including land use change, air–water–soil pollution, less activity, electromagnetic radiation and contaminated sea foods. These are risk factors of gastric cancer. This research indicated that Xiamen Island was prevalent of gastric cancer with a positive correlation with urbanization age. |
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