摘要
本文目的是介绍生存资料参数回归模型的SAS实现,包括创建SAS数据集、依据图示法选择模型、拟合参数模型和似然比检验。利用SAS中的LIFEREG过程绘制生存函数关于生存时间的关系图,拟合对应的参数分布回归模型,通过拟合优度检验选择最优的参数回归模型,最后对相关结果进行解释。
The purpose of this article was to introduce the SAS implementation of the parametric model for the survival data,including the creation of a SAS data set,a graphical selection method,fitting parametric model,and a likelihood ratio test.The relationship between survival time and survival function was drawn by using the LIFEREG procedure in SAS software,and the corresponding parametric distribution was fitted.The optimal parametric model was selected by the goodness-of-fit test,and the relevant results were explained.
作者
张甜甜
刘红伟
刘媛媛
李长平
胡良平
Zhang Tiantian;Liu Hongwei;Liu Yuanyuan;Li Changping;Hu Liangping(School of Public Health,Tianjin Medical University,Tianjin 300070,China;Specialty Committee of Clinical Scientific Research Statistics of World Federation of Chinese Medicine Societies,Beijing 100029,China;Graduate School,Academy of Military Sciences PLA China,Beijing 100850,China)
出处
《四川精神卫生》
2020年第1期39-43,共5页
Sichuan Mental Health
基金
国家自然科学基金项目(项目名称：贝叶斯生存分析方法在肝细胞癌肝移植患者预后预测中的应用研究，项目编号：81803333)
关键词
生存分析
参数回归
拟合优度检验
似然比检验
WEIBULL分布
Survival analysis
Parametric regression
Goodness-of-fit tests
Likelihood-ratio tests
Weibull distribution
