Although survival curves generated using the Kaplan-Meier method for different groups (i.e.
However, this technique is limited to creating survival curves for populations that are assumed to be homogeneous, and this method does not incorporate values for predictor variables that may have been collected for the individuals in the study (such as age, race, treatment group, etc.). For a long time, Prism has offered a very simple form of survival analysis that uses the Kaplan-Meier estimation of survival. In the biological sciences, the "event" being studied is often death (of animals in a given experimental group, of humans with a particular disease process, etc.), giving this analysis its name. Survival analysis is an extremely powerful statistical tool that is used to analyze "time to event" data, and generate estimates for how the probability of this event occurring changes over time.
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