TY  - JOUR
PY  - 1999//
TI  - Computing the Cox model for case cohort designs
JO  - Lifetime data analysis
A1  - Therneau, T. M.
A1  - Li, H.
SP  - 99
EP  - 112
VL  - 5
IS  - 2
N2  - 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.<p /> <p>Language: en</p>
LA  - en
SN  - 1380-7870
UR  - http://dx.doi.org/
ID  - ref1
ER  -