Table 3.

Results of immunohistochemical staining in ER−/HER2− tumours

	N	%*
TP53
Negative	24	42.1
Positive	33	57.9
CK5/6
Negative	28	52.8
Positive	25	47.2
CK14
Negative	39	70.9
Positive	16	29.1
EGFR
Negative	47	82.5
Positive	10	17.5
c-kit
Negative	52	91.2
Positive	5	8.8
Ki67
Low	2	4.5
High	42	95.5

CK cytokeratin, EGFR epidermal growth factor receptor

* Valid percentages