Survival Analysis Using SAS®: A Practical Guide

Introduction

In the previous chapters, all the events in each analysis were treated as though they were identical: all deaths were the same, all job terminations were the same, and all arrests were the same. In many cases, this is a perfectly acceptable way to proceed. But more often than not, it is essential—or at least desirable—to distinguish different kinds of events and treat them differently in the analysis. To evaluate the efficacy of heart transplants, you will certainly want to treat deaths due to heart failure differently from deaths due to accident or cancer. Job terminations that occur when an employee quits are likely to have quite different determinants than those that occur when the employee is fired. And financial aid to released ...