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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. We will demonstrate the features of SAS PROC LIFEREG, PROC LIFETEST, PROC PHREG, PROC BPHREG, estimated hazard function, Survival function, advanced features of PHREG, and selecting the best candidate models in model selection.

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

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