User Guide

109
Computing Time-Dependent Covariates
Figure 12-1
Compute Time-Dependent Covariate dialog box
 Enter an expression for the time-dependent covariate.
 Click Model to proceed with your Cox Regression.
Note: Be sure to include the new variable T_COV_ as a covariate in your Cox
Regression model.
For more information about the model-building process, see Chapter 11.
Cox Regression with Time-Dependent Covariates
Additional Features
The SPSS command language also allows you to specify multiple time-dependent
covariates.
Other command syntax features are available for Cox Regression with or without
time-dependent covariates.
See the SPSS Syntax Reference Guide for complete syntax information.