Computing the Cox model for case cohort designs
Computing the Cox model for case cohort designs
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DOI：
10.1023/a:1009691327335
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发表时间：
1999-06-01
影响因子：
1.3
通讯作者：
Li, HZ
中科院分区：
文献类型：
--
作者：
Therneau, TM;Li, HZ
普伦蒂斯（1986）提出了病例队列设计作为生存研究的有效子抽样机制。其他几位作者已经扩展了这些想法，创建了一个家庭的相关抽样计划，沿着估计的协变量的影响。我们描述了如何获得建议的参数估计和方差估计使用标准的软件包，SAS和S-PLUS作为特定的例子。
Prentice (1986) proposed a case-cohort design as an efficient subsampling mechanism for survival studies. Several other authors have expanded on these ideas to create a family of related sampling plans, along with estimators for the covariate effects. We describe how to obtain the proposed parameter estimates and their variance estimates using standard software packages, with SAS and S-PLUS as particular examples.