| Literature DB >> 10408179 |
T M Therneau1, H Li.
Abstract
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.Entities:
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Year: 1999 PMID: 10408179 DOI: 10.1023/a:1009691327335
Source DB: PubMed Journal: Lifetime Data Anal ISSN: 1380-7870 Impact factor: 1.588