Analysis of the Time to an Event: Survival Analysis

Survival analysis of time to an event such as death or sickness. The survivorship function is estimated via the actuarial method and the Kaplan-Meier curve. Both are compared graphically and via the log-rank test. Stratification is needed when confounding is present. The Cox proportional hazard model incorporates covariates into the survival model. Other parametric and non-parametric models are discussed.