Merged estrogen receptor

Source of standard: CDC’s National Program of Cancer Registries

Source item name: Combined from CS Site-Specific Factor 1 (breast) and Estrogen Receptor Summary

Source item number: Derived from NAACCR 2880external icon (CS Site-Specific Factor 1) and 3827external icon (Estrogen Receptor Summary from Site-Specific Data Item)

This is a merged variable created using the variables CS Site-Specific Factor 1 (breast) and Estrogen Receptor Summary and is the summary of results of the estrogen receptor (ER) assay.

Considerations for Use

Data for this variable are available for female breast cancer cases diagnosed in 2004 or later.

Brain and Other Nervous System Sites

Note: This frequency table is restricted to female breast cancer cases and diagnosis years 2004 or later.

data/merged-estrogen-us.json

Note: This frequency table is restricted to central nervous system cases and diagnosis years ≥2011.

data/merged-estrogen-uspr.json