Table 1.

Cohort characteristics including endocrine receptor (ER), progesterone receptor (PR), human epidermal growth factor receptor (HER2) positivity, together with lymph node (LN) status, recurrence free survival (RFS) and overall survival

Characteristic	Value
Age at diagnosis (years)	65 (13.5)
ER+/−	125/19
PR+/−	100/44
HER2+/−	51/93
LN+/−	56/74
RFS (years)	5.45 (2.2)
OS (years)	5.78 (1.88)
NHG (1/2/3)	22/64/57
Therapy type (radiotherapy/chemotherapy/endocrine therapy)	60/113/96

Tumor grade is encapsulated as Nottingham Histological Grade (NHG) score.