U.S. and Puerto Rico Data Variable Definition and Frequency
U.S. Cancer Statistics Public Use Database
The following variables are available in the U.S. Cancer Statistics Public Use Database, U.S. and Puerto Rico data (2005–2017). They are listed by SEER*Stat category. Click on the variable name for more information, including the source, description, and considerations for use.
Please note that the frequencies were created with Malignant Behavior unselected on the SEER*Stat Selection tab.
Age at Diagnosis
Race, Sex, Year of Diagnosis, Registry, County
Site and Morphology
- Primary site – labeled
- Histologic type ICD-O-3 (International Classification of Diseases for Oncology, Third Edition)
- Behavior code ICD-O-3
- Grade
- Diagnostic confirmation
- ICD-O-3 histology/behavior, labeled
- Site recode ICD-O-3/Word Health Organization (WHO) 2008
- International Classification of Childhood Cancer (ICCC) site recode ICD-O-3/WHO 2008
- ICCC site recode extended ICD-O-3/WHO 2008
- Adolescent and young adult (AYA) site recode/WHO 2008
- Lymphoma subtype recode/WHO 2008
Stage – Local, Regional, Distant (LRD) [Summary and Historic]
Therapy
- RX summary – surgery primary site
Restricted to female breast only and diagnosis years ≥2003
Extent of Disease – Collaborative Stage (CS)
- CS site-specific factor 1
Restricted to two groups:- Female breast (Estrogen Receptor Assay)
- Brain and other nervous system and diagnosis years ≥2011 (WHO Grade Classification)
- CS site-specific factor 2 (Progesterone Receptor Assay)
Restricted to female breast only - CS site-specific factor 15 (HER-2 Summary Results)
Restricted to female breast only and diagnosis years ≥2010 - Laterality
Multiple Primary Fields
Dates
Other
Merged System-Supplied
Page last reviewed: June 8, 2020