中国食管癌死亡率与水污染的空间相关分析（英文）

• 作 者: 张雪艳 庄大方 马欣 江东
• 机 构: Data Center for Resources and Environmental Sciences,Institute of Geographic Sciences and Natural Re
• 出 处: Journal of Geographical Sciences
• 发表日期: 2004年期
• 关键词: esophageal mortality 食管癌死亡率 nationwide rivers 水污染 river scaled ascertain Correla

Esophageal cancer exhibits one of the highest incidence and mortality rates in China.Malignant tumors caused by esophageal cancer,and the relationship to environmental factors has been the focus of many public health studies.This study applied spatial analysis to ascertain the relationship between water pollution and esophageal cancer mortality rates nationwide.We employed two datasets,including a national investigation of esophageal cancer rates and distribution,and national water quality grades in China's primary rivers and lakes.Esophageal cancer data were grouped based on different water quality grades,which included a scaled buffer distance from rivers and lakes.Non-parametric correlation analyses were performed to examine the presence or absence of the following correlations:(i) esophageal cancer mortality and buffer distance from rivers and lakes;and(ii) esophageal cancer mortality and water quality grade values.The present study revealed a significant positive correlation between widespread water pollution and esophageal cancer mortality nationwide;and a significant negative correlation between esophageal cancer mortality,and buffer distance from rivers and lakes.

Esophageal cancer exhibits one of the highest incidence and mortality rates in China. Malignant tumors caused by esophageal cancer, and the relationship to environmental factors has been the focus of many public health studies. This study applied spatial analysis to ascertain the relationship between water pollution and esophageal cancer mortality rates nationwide. We employed two datasets, including a national investigation of esophageal cancer rates and distribution, and national water quality grades in China's primary rivers and lakes. Esophageal cancer data were grouped based on different water quality grades, which included a scaled buffer distance from rivers and lakes. Non-parametric correlation analyzes were performed to examine the presence or absence of the following correlations: (i) esophageal cancer mortality and buffer distance from rivers and lakes; and (ii) esophageal cancer mortality and water quality grade values.The present study revealed a significant positive correlation betwe en widespread water pollution and esophageal cancer mortality nationwide; and a significant negative correlation between esophageal cancer mortality, and buffer distance from rivers and lakes.