对应分析在生态学研究中的应用

李宝红; 董时富; 孙振球

Abstract

李宝红,董时富,孙振球.对应分析在生态学研究中的应用[J].Chinese journal of Epidemiology,2007,28(9):914-917

对应分析在生态学研究中的应用

An application of correspondence analysis method in the study of disease etiology

Received:December 25, 2006 Revised:September 10, 2007

DOI：

KeyWord: 胃癌对应分析生态学研究死亡率

English Key Word: Gastric carcinoma Correspondence analysis Ecological study Mortality

FundProject:

Author Name	Affiliation
LI Bao-hong	School of Public Health, Central South University, Changsha 410078, China
DONG Shi-fu	School of Public Health, Central South University, Changsha 410078, China
SUN Zhen-qiu	华中科技大学同济医学院卫生统计教研室

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Abstract:

目的探讨对应分析在生态学研究中的应用。方法用对应分析方法对中国部分城市食品摄入量与男性胃癌死亡之问的关系进行分析。结果从对应分析的因子负荷图中可以看出男性胃癌死亡率存在地区性差异。结论因子负荷图直观地表述了中国部分城市与男性胃癌死亡率存在地区性差异,南方男性居民对米特别是精制的米以及食盐摄入较多,面类、浅色蔬菜摄入量较少。这可能暗示着存在一些致癌因素。

English Abstract:

Objective To explore the application value of correspondence analysis in ecological study.Methods We adopted correspondence analysis method to analyze the relationship between the amount of food intake in some cities in China and the male gastric carcinoma mortality.Results According to scatter plots of row and column points,there were regional differences among the male gastric carcinoma mortality in different cities of China.Conclusion The scatter plot of row and column points indicated directly that there were regional differences among the male gastric carcinoma mortality in different cities of China.Males from the Southern part of the country ate more rice and salt,less wheaten food and fewer light vegetables than those from the northern parts,suggesting that there might be some carcinogenic factors in some food stuff involved.

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