U.S. 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. data (2001–2017). They are listed by SEER*Stat category. Click on the variable name for more information, including the source, description, and considerations for use.

Age at Diagnosis

Race, Sex, Year of Diagnosis, Registry, and County

Site and Morphology

Stage – Local, Regional, Distant (LRD) [Summary and Historic]

Therapy

Extent of Disease – Collaborative Stage (CS)

  • CS site-specific factor 1
    Restricted to two groups:
    • Female breast and diagnosis years ≥2004 (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 and diagnosis years ≥2004
  • CS site-specific factor 15 (HER-2 Summary Result)
    Restricted to female breast only and diagnosis years ≥2010
  • Laterality

Multiple Primary Fields

Race and Age (case data only)

Dates

Other

User-Specified

Merged System-Supplied