As the first step in the decommissioning of sasCommunity.org the site has been converted to read-only mode.
Here are some tips for How to share your SAS knowledge with your professional network.
Extending the Use of PROC PHREG in Survival Analysis
Proc PHREG is a powerful SAS® tool for conducting proportional hazards regression. Its utility, however, can be greatly extended by auxiliary SAS code. We describe our adaptation of a group of existing public domain SAS survival analysis macros, as well as our development of additional control, management, display, and other macros, to accommodate a project with requirements that included:
- large data sets to be analyzed in counting process format and containing time-varying covariates
- missing data requiring multiple imputation procedures
- varying combinations of covariates, outcome events, censoring mechanisms, and origin definitions resulting in several hundred different models
We also describe how to provide in this analysis process for:
- Exploratory Data Analysis (EDA)
- assessment of model assumptions
- consolidation of multiple analyses
- final output HTML displays packaged for easy access
Tools extending the capabilities of PHREG are already available-- join us to learn more about them.
View the pdf for this paper.
Additional details on the construction of the data set used as input to the PHREG procedure described in this paper can be found in this sasCommunity article on fuzzy merges.
Visit my user page.