Continuous Marker Prognostic Power

This program uses simulation to approximate the power of a test of a marker association with survival data assuming an exponential regression model.

For further details, view the Help Document.

User Input
Program Output

Input values in yellow boxes and click button to calculate power:

Number of Simulations
Total Sample Size
Alpha Level
Accrual Period
Follow-up Period
Hazard Rate (marker value = 0)
Effect Size (Hazard Ratio per Unit)


Marker Distribution

Log-Normal Distribution Parameter
Show Log-Normal Distribution

Estimated Effect and Simulated 1-Alpha CI
Expected Number of Events in Entire Study