Computing a Time-Dependent Covariate

This feature requires SPSS® Statistics Standard Edition or the Advanced Statistics Option.

1. From the menu, choose

   Analyze > Survival > Cox w/ Time-Dep Cov...

2. Enter an expression for the time-dependent covariate.
3. Click Model to proceed with your Cox Regression.

Note- Ensure that you include the new variables that are added as covariates in your Cox Regression model.