The Selection tab is used to select the records to be included in the analysis. On the Selection tab for a Survival session, there are check boxes for standard case selections made for survival runs. In addition, selection statements may be created in the Case Selection box to reduce the number of records included in an analysis based on specific variables in the case data files. If no selection statements are made, all records in the database will be included.
When making selections, start at the top and work your way down the window.
The Standard Case Selections box contains a set of case selection or exclusion criteria commonly associated with survival analyses. Each standard selection or exclusion can be accepted or rejected by marking or clearing its check box. When a new Survival Session is started, some of the standard selections or exclusions will be automatically marked. These default selections represent the standard selections most commonly used for a survival analysis. The View Statement link next to the box open the Standard Selection Details dialog describing the checked selections.
Select this option to include only cases that were microscopically confirmed. The case will be included in the analysis if the Diagnostic Confirmation variable indicates that there was microscopic confirmation of the morphology of the cancer.
Select this option to include only cases that were actively pursued for follow-up information. If the Type of Follow Up variable indicates that the case was actively followed, the case will be included in the analysis.
Select this option to include only cases with a malignant behavior. The Behavior variable is part of the morphology of cancer. The SEER program only collects information on in situ and malignant cancers. If the behavior code is malignant, the case will be included in the analysis.
Select this option to include only cases where sex is either Male of Female.
Select this option to include only cases of a known age.
Select this option to include only cases in the selected Research Database.
Select this option to exclude all cases where cancer was reported through only a death certificate or autopsy. If the Type Of Reporting Source variable indicates that a death certificate or autopsy was the only source of information for the case, the case will be excluded from the analysis.
Select this option when you want to exclude all cases that are alive and have zero survival time.
Select this option to exclude all cases that died with zero survival time and had a cause of death other than what was defined in the Definition of Cause of Death. This option is only available when the Definition of Cause of Death is used (Cause-Specific Survival and Crude Probability of Death Using Cause of Death).
Exclusions required to match Expected survival data are always made when relative survival or crude probability of death using expected survival are calculated. Records with values not found in the expected survival data must be excluded. For example, there are no expected survival data for unknown race. Therefore, case records with unknown race are excluded when using expected survival data in calculations. When you calculate survival statistics that do not use expected survival data (such as observed survival), you have the option to turn these exclusions on or off. Using these exclusions for observed survival allows you to analyze the same cohort that would be used in relative survival calculations -- assuming you are working with the same expected survival file.
Select this option to exclude all cases with ages outside the boundaries of the expected survival table or with unknown ages.
Select this option to exclude all cases with an unknown age date (the date at which the age was coded). In SEER, the age date is the date of diagnosis.
Select this option to exclude all cases with a missing or unknown value for any remaining expected survival table variable (excluding age and year when age was coded). For SEER*Stat-supplied expected survival tables, the only "other" variable is race.
This link opens the Standard Selection Details dialog, which provides the details of the standard options, indicates whether an option has been checked and shows if an option is disabled and the reason.
The Multiple Primary Selections option provides several methods for selecting the specific tumor or tumors of interest for an individual. Choose a Multiple Primary Selection option from the drop-down list at the bottom of the Selection tab.