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FOCUS AREAS

Survival Analysis Procedures

Survival Analysis

Data that measure lifetime or the length of time until the occurrence of an event are called lifetime, failure time, or survival data. For example, variables of interest might be the lifetime of diesel engines, the length of time a person stayed on a job, or the survival time for heart transplant patients. The purpose of survival analysis is to model the underlying distribution of the failure time variable and to assess the dependence of the failure time variable on the independent variables.

Below are highlights of the capabilities of the SAS/STAT procedures that perform survival analysis: