Data Documentation & Variable Recodes
The following resources provide variable definitions and other documentation related to reporting and using SEER data.
- AJCC Cancer Staging
- AYA Site Recode - adapted classification scheme for tumors of adolescents and young adults (AYA).
- Behavior Recode for Analysis - definition of the behavior recode variable and how it was created for various data releases.
- Cause of Death Recode - definitions of site groupings based on the International Classification of Diseases.
- Cause-specific Death Classification - defined for use in cause-specific survival calculations.
- Incidence Site Recode - definitions of major cancer sites based on the primary site and histology.
- International Classification of Childhood Cancer - definitions based on site and morphology coded according to ICD-O-2 or ICD-O-3.
- Localized/Regional/Distant Stage Adjustments - detailed changes imposed by the SEER Program on the SEER Historic and Summary stage variables for each data release.
- Lymphoma Subtype Recode - a variable based on a classification scheme of lymphoid neoplasms designed to facilitate epidemiologic studies of lymphoma subtypes.
- Policy for Calculating Hispanic Mortality - excluding data from states for years for which data on Hispanic and non-Hispanic mortality may be unreliable.
- Months Survived Based on Complete Dates - a survival algorithm that uses day information in the survival calculation.
SEER Data Documentation - information about other variables used in the most recent SEER data release.
