SEER Formatting used for some of these variables
Age at diagnosis (agedx)
Biological modification therapy (immunq)
Cancer status at last follow-up (cancstat)
Cause of death (cod)
Chemotherapy (chemo)
County of residence (county)
Date of birth (bdate)
Date of diagnosis (dxdate)
Date of first therapy (rxdate)
Date of last follow-up (fudate)
Diagnostic confirmation (dxconf)
Estrogen receptor (Tumrmkr1)
Extent of disease (EOD)
Grade/differentiation (grade)
Hormone therapy (hormone)
Laterality (laterlty)
Lymph nodes (EOD)
Lymph node surgery (lnsscpe pre-1998; lnscope >1998)
Morphology (hist)
Number of lymph nodes examined (nlnexam pre-1998; lnexam >1998)
Number of lymph nodes examined (EOD)
Other cancer-directed therapy (otherapy)
Place of birth (brthplce)
Positive lymph nodes (EOD)
Primary cancer site (primsite)
Progesterone receptor (Tumrmkr2)
Race (race)
Radiation therapy (rad)
Radiation therapy with surgery (radsursq)
Reconstruction (first course) (sitesurg pre-1998; reconst >1998)
Registry sequence number (seq)
Surgery – site specific [Sitepsrg (Surgery of Primary Site 1998+); Sitesurg (Site-specific surgery < 1998)]
Surgery of other sites or lymphnodes (otherlns pre-1998; surgothr >1998)
Spanish surname (spsname)
State of residence (state)
TNM M code (from extent of disease and nodal involvement) (EOD)
TNM N code (from nodal involvement) (EOD)
TNM T code (from tumor size and extent of disease) (EOD)
Tumor size (EOD)
Vital status (vital)