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目的:使用损失分布的几种模型方法来研究适合新型农村合作医疗住院费用更科学的模型,方法:分别使用对数正态分布,Pareto分布,Weibull分布Burr分布对陕西省宝鸡市眉县新型农村合作医疗住院病人费用分布曲线进行拟合,利用Matlab 7.1软件进行参数估计并利用χ~2检验,Kolmogorov-Smirnov法分别进行拟合优度检验。结果:新型农村合作医疗参合农民的住院费用的最优分布为Burr分布。结论:采用Burr分布模型可以对新型农村合作医疗住院费用进行有效拟合。
OBJECTIVE: To study a more scientific model of hospitalization costs for new-type rural cooperative medical care by using several models of loss distribution. Methods: Using Log-normal distribution, Pareto distribution and Weibull distribution Burr distribution, Cooperative medical inpatients were fitted with the cost distribution curve, and the parameters were estimated by Matlab 7.1 software and the Kolmogorov-Smirnov method was used to test the goodness of fit using χ ~ 2 test and Kolmogorov-Smirnov test respectively. Results: The optimal distribution of hospitalization expenses of farmers participating in NCMS was Burr distribution. Conclusion: Burr distribution model can be used to effectively fit the new rural cooperative medical hospitalization costs.