Table 1. Characteristics of breast cancer patients identified in the California Cancer Registry from 2005–2008 (n = 43,938).
Abbreviations: HER2, human epidermal growth factor receptor 2; HER2+, human epidermal growth factor receptor 2‐positive; HER2−, human epidermal growth factor receptor 2‐negative; HR, hormone receptor; HR+, hormone receptor‐positive; HR−, hormone receptor‐negative; PI, Pacific Islander; TNBC, triple negative breast cancer; TNM, TNM‐tumor, node involvement, metastases staging.