Table 1. Pathological features and hormone receptor status of the cohort of primary breast carcinomas analysed during the ADAM10 investigation.

Tumour characteristic	N	%
Age (years)
⩽50	40	34.2
>50	77	65.8
Unknown	0	0.0
Tumour size (cm)
⩽2	32	27.3
>2	76	65.0
Unknown	9	7.7
Grade
1 and 2	46	39.3
3	60	51.3
Unknown	11	9.4
Nodal status
Negative	56	47.9
Positive	56	47.9
Unknown	5	4.2
ER status
Negative	38	32.5
Positive	79	67.5
Unknown	0	0.0
HER2 status
Negative	100	85.5
Positive	6	5.1
Unknown	11	9.4
Histological typea
Ductal (D)	92	78.6
Lobular (L)	16	13.7
D and L	5	4.3
Other	0	0.0
Unknown	4	3.4

Abbreviation: ER, oestrogen receptor.

^aAll tumours were infiltrating carcinomas. Ductal carcinoma in situ and lobular carcinoma in situ were excluded.