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A Step-by-Step Guide to Survival Analysis

A Step-by-Step Guide to Survival Analysis Lida Gharibvand, University of California, Riverside ABSTRACT Survival Analysis involves the modeling of time-to-event data whereby death or failure is considered an "event". The graphical presentation of Survival Analysis is a significant tool to facilitate a clear understanding of the underlying events. In particular, the graphical presentation of Cox s proportional hazards model using SAS PHREG is important for data exploration in Survival Analysis . In this paper, we will present a comprehensive set of tools and plots to implement Survival Analysis and Cox s proportional hazard functions in a Step-by-Step manner.

paper also demonstrates some sophisticated graphics made possible by the new SAS ODS Statistical Graphics capability. SURVIVAL DATA The actual data from Mayo liver disease example of Lin, Wei, and Ying (1993) is used here to demonstrate the features. The data consists of 418 patients with Primary Biliary Cirrhosis (PBC), among which 161 had

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