Duration Time Window Method

Use the radio buttons to choose the method for determining the time windows to consider during analysis of exposure duration.

Available methods are described in the following table:

Method for Determining Time Points	Definition
Set Number of Duration Time Windows	• Select this option to divide the total exposure period into intervals of equal length. The number of intervals is specified using the Number of Duration Time Windows field or slider. • All observations taken within an interval are plotted together. • The final report lists the number of patients that fall into each window of exposure.
Use Duration Time Windows List	• Select this option to plot observations taken during specific time points during the trial period. Time windows are specified as a list in the Duration Time Windows field. • All observations taken within an interval are plotted together. • The final report lists the number of patients that fall into the specified windows of exposure only.

To Specify the Method Used for Determining Time Points:

Click the radio button corresponding to the time frame that you want to use.