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上海市嘉定区农村居民就诊单位选择的影响因素分析--决策树和多分类无序反应变量的logistic回归相结合的方法
引用本文:张娴静,陈政,赵耐青,罗力,张黎明,王颖,陈进根,张广鹏,邓益川,孙梅,李春芳,马进,谢洪明,华颖,包江波,劭晶晶,郝模.上海市嘉定区农村居民就诊单位选择的影响因素分析--决策树和多分类无序反应变量的logistic回归相结合的方法[J].中国卫生统计,2005,22(2):80-84.
作者姓名:张娴静  陈政  赵耐青  罗力  张黎明  王颖  陈进根  张广鹏  邓益川  孙梅  李春芳  马进  谢洪明  华颖  包江波  劭晶晶  郝模
作者单位:1. 复旦大学卫生发展战略研究中心
2. 上海嘉定区卫生局
3. 复旦大学卫生统计和社会医学教研室,200032
基金项目:国家教育部博士点基金(20020246078)和国家杰出青年基金(79925002)资助
摘    要:目的 分析影响上海市嘉定区农村居民就诊单位选择的因素,并探讨logistic回归分析和决策树(CHAID法)相结合的方法的应用。方法 采用多分类无序反应变量的logistic回归分析和决策树(CHAID法)相结合的方法,用似然比检验比较模型之间的优劣,确定最佳模型。结果 影响嘉定区农村居民选择就诊单位的主要因素是保健制度、年龄、恩格尔系数、性别、看病距离、职业以及保健制度和文化程度的交互作用。结论 决策树提供解释变量类别的重新划分和因素之间的相互作用的信息,logistic模型提供因素的主效应作用以及对交互作用是否存在的检验信息,两者结合,可以更加全面地挖掘出对目标变量有影响的因素及因素之间的交互作用。

关 键 词:上海  农村  居民  就诊单位选择  影响因素  决策树  多分类无序反应变量  logistic回归分析

Researches on the Factors Influencing the Outpatients' Choice of Selecting Care Providers in Jiading District of Shanghai: a Method of Combining Decision Tree Model with Multinomial Logistic Regression
Zhang Xianjing,Chen Zheng,Zhao Naiqing,et al..Researches on the Factors Influencing the Outpatients'''' Choice of Selecting Care Providers in Jiading District of Shanghai: a Method of Combining Decision Tree Model with Multinomial Logistic Regression[J].Chinese Journal of Health Statistics,2005,22(2):80-84.
Authors:Zhang Xianjing  Chen Zheng  Zhao Naiqing  
Abstract:Objective To analyze the factors influencing the outpatients' choice of selecting care providers in jiading district of shanghai and discuss the method of combining decision tree model with multinomial logistic regression.Methods decision tree model and multinomial logistic regression are used jointly to select influential factors.Then analysis of maximum likelihood estimates will pick out the best model.Results the result shows that the factors influencing the outpatients' choice are medical care system,age,sex,Engel's coefficient,the distance from home to village clinic,occupation,and the interaction of medical care system and educations.Conclusion the method combining decision tree model with multinomial logistic regression can get comprehensive information about the main effects and interactions.
Keywords:Choice of selecting care providers  Decision tree  CHAID  Multinomial logistic regression
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