The Selection tab is used to select the records to be included in the analysis. If no selection statements are made on the Selection tab, all records in the database will be included. Selection statements reduce the number of records included in an analysis based on the selected variables.
When you open the Selection tab on the session you will see two boxes on the screen. The first box is marked Select Only and has check boxes for selecting Malignant Behavior, Male or Female Sex, Known Age and Cases in Research Database. Underneath is a box for selection statements. To create selection statements click on the Edit button to open the Case Selection dialog box.
In addition, if a multiple primary ready database is selected on the Data tab, you have the option to make selections using each person's tumor history. To enable this feature, open the Session menu and select Person Selection.