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Survival Analysis, Overview

  1. Per Kragh Andersen1,
  2. Niels Keiding2

Published Online: 15 JUL 2005

DOI: 10.1002/0470011815.b2a11072

Encyclopedia of Biostatistics

Encyclopedia of Biostatistics

How to Cite

Andersen, P. K. and Keiding, N. 2005. Survival Analysis, Overview. Encyclopedia of Biostatistics. 4.

Author Information

  1. 1

    University of Copenhagen, Denmark

  2. 2

    University of Copenhagen, Denmark

Publication History

  1. Published Online: 15 JUL 2005


Survival analysis is the generic name for analysis of time-to-event data. The distinguishing feature of such data is the presence of right-censored observations. Thus, for some subjects, instead of observing the real time to the event, only a lower limit for this time, the right-censoring time, is known. This kind of incomplete data calls for special statistical techniques for the analysis. This article reviews such methods with cross-references to other articles dealing with special techniques.


  • censored data;
  • time-to-event data;
  • life table;
  • proportional hazards;
  • Cox model