Stratification Variables

Select one or more variables from the ADSL table by which to stratify the Cochran-Mantel-Haenszel exact test . Using such variables to stratify the analyses can help avoid confounding in the tests of interest.

Refer to PROC FREQ documentation for additional details.

To Specify Stratification Variables:

Select Specified Below as Trial Time Windows .

All of the ADSL variables in the specified study are displayed in the Available Variables field.

Examine the list of available variables.

Highlight the desired stratification variable(s). To select multiple variables at once, hold down Ctrl while selecting them.

Click to add the highlighted variable(s) to the Stratification Variables field, as shown below: