Five-year survival by HER2/HR status for women aged 20–49 years diagnosed with stage I-III breast cancer, 2010–2015, SEER 18 registries. (A) Women aged 20–29 years. (B) Women aged 30–39 years. (C) Women aged 40–49 years.
Abbreviations: HER2, human epidermal growth factor receptor-2; HR, hormone receptor; SEER, Surveillance, Epidemiology, and End Results.
Numbers of patients at risk are given below the x-axis.