Table 1 Patient and tumour characteristics

Patient age

 Mean ± SD/median/range

54.9 ± 10.1/54.5/31–74

Family history

 Positive/negative

1 (3)/35 (97)

Menopausal status

 Pre/post

13 (36)/23 (64)

Hormone replacement therapy

 Given/not given

8 (22)/28 (78)

Patient BMI^a

 Mean ± SD/median/range

23.7 ± 3.2/23/18–34

Tumour location—side

 Right/left

15 (42)/21 (58)

Tumour location—quadrant

 Upper outer/lower outer/lower inner/upper inner

14 (39)/10 (28)/9 (25)/3 (8)

Radiological tumour size (mm)

 Mean ± SD/median/range

37 ± 10/37/24–60

Pathological tumour size (mm)

 Mean ± SD/median/range

36 ± 9/33.5/21–53

Nuclear grade

 Low/intermediate/high

7 (19)/16 (45)/13 (36)

Comedonecrosis

 Absent/present

17 (47)/19 (53)

T stage (invasive component, n = 20)

 pT1/pT2

14 (70)/6 (30)

ER status

 Positive/negative^b

31 (86)/5 (14)

Her-2 status (invasive component, n = 20)

 Positive/negative^c

4 (20)/16 (80)