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. Author manuscript; available in PMC: 2021 Feb 1.
Published in final edited form as: Breast Cancer Res Treat. 2020 Jan 24;180(1):227–235. doi: 10.1007/s10549-020-05542-4

Fig. 1.

Fig. 1

Select treatment characteristics of women with breast cancer in the NCDB (2004–2015), stratified by age group. Data presented as percentages and may not add up to 100 due to rounding or missing values. All p values < 0.001 and represent the comparison between patients ≤ 45 years and those ≥ 75 years. a Breast surgery type. b Chemotherapy receipt. c Radiation therapy receipt. d Endocrine therapy receipt, stratified by hormone receptor (ER/PR) status. ER estrogen receptor. PR progesterone receptor