Nonparametric Methods in Statistics with SAS Applications

Chapter 6

Time-to-Event Analysis

Frequently investigators are interested in modeling the distribution of the time that

elapses before a certain event occurs. Generally speaking, the modeling of the dis-

tribution is called the time-to-event analysis but because of the wide range of appli-

cations, this analysis may bear other names depending on the field. For instance, in

a clinical trial the event may be a medical complication in a patient or even death,

and the analysis is called the survival analysis. In industrial processes, a machinery

component malfunction may be the event of interest, and the analysis is termed reli-

ability analysis or time-to-failur ...