What is the difference between the two variables “Behavior Recode for Analysis” and “Behavior Recode for Analysis Derived”?
The Behavior Recode for Analysis variable is used for analysis of SEER data to account for tumors that are either no longer reportable to SEER, or newly reportable, based on the change from the ICD-O-2 to ICD-O-3 coding scheme on January 1, 2001. SEER*Prep does not create this variable, but has a column location for it in the incidence file format. To take advantage of this, you must create the variable on your own. See SEER Behavior Recode for Analysis for more information. The Behavior Recode for Analysis Derived variable was made available with the release of SEER*Prep 2.4.0 as an option for people who are using their own non-SEER data. It has one value fewer than the original behavior recode: cases coded as “5=No longer reportable in ICD-O-3” would be “1=Borderline malignancy” in the derived variable. SEER*Prep will create this variable from primary site and ICD-O-3 behavior and histology. See Behavior Recode for Analysis Derived for more information.
