Time
Treatment One
Treatment Two
Survival Analysis is a commonly used statistical model to analyze clinical trial data. One strength about this model is that one can accommodate differential follow up times for subjects by utilizing the different types of censoring patterns that occur in a study. We are capable of performing simple analyses using the log rank statistic or more complex models using the Cox Proportional Hazards Model. The Survival Analysis model can be extended to allow the hazard rate to
change due to:
- A subject's baseline characteristics,
- A subject's interim clinical findings,
- Treatment by Findings Interactions,
- Simple changes in risk due to the passage of time.
Kaplan-Meier Curve Comparing Two Treatments
Survival Analysis