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Parametric Survival Analysis

Parametric survival analysis is a subset of mathematical and statistical methods for characterizing the time relatedness of the occurrence of events such as death. It is distinguished from nonparametric and semiparametric methods by using a mathematical formula, termed a model, to summarize times to an event. At a minimum, the model contains the variable time and at least one constant, called a parameter, whose value is estimated statistically from event-time data.

Alternative Philosophies in Formulating Parametric Survival Models

Biomathematically, parametric models characterize the rate at which time-related events occur, called the force of mortality or hazard function. Survival is derived by applying this rate to living subjects such that their number diminishes as deaths increase. Biostatistically, parametric models are empirical, convenient characterizations of the distribution of ...

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