Evaluating the Proportional Hazards Assumption

  • David G. Kleinbaum
Part of the Statistics in the Health Sciences book series (SBH)


We begin with a brief review of the characteristics of the Cox proportional hazards (PH) model. We then give an overview of three methods for checking the PH assumption: graphical, goodness-of-fit (GOF), and time-dependent variable approaches.


Proportional Hazard Assumption Graphical Approach Practice Exercise Estimate Survival Curve Cell Type Variable 
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Copyright information

© Springer Science+Business Media New York 1996

Authors and Affiliations

  • David G. Kleinbaum
    • 1
  1. 1.Department of EpidemiologyEmory UniversityAtlantaUSA

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