ER+/PR+/ HER2- 4311 (71%)

ER+/PR+/ HER2+ 486 (8%)

ER-/PR-/ HER2+ 364 (6%)

ER-/PR/ HER2- 911 (15%)

p value

Age (mean)

58 years

52 years

53 years

54 years

<0.0001

T size (cm)

1.68 cm

1.97 cm

2.22 cm

2.25 cm

<0.0001

Nodal involvement

% positive

43

52

57

44

<0.0001

% ≥ 4 pos LN

11

20

28

14

<0.0001