Table 1.

Clinical information for the TNBC cohorts per center (NKI, RUMC and SCDC)

	NKI	%	RUMC	%	SCDC	%
Cases	142	100	21	100	15	100
Slides	172	100	67	100	15	100
Response
pCR = 0	72	51	13	62	8	53
pCR = 1	70	49	8	38	7	47
Age
Age ≤ 50	91	64	14	67	7	47
Age > 50	51	36	7	33	8	53
Grade
Grade = 2	34	24	4	19	2	13
Grade = 3	90	63	12	57	13	87
Unknown	18	13	5	24	–	–
T stage
T1/2	104	73	–	–	–	–
T3/4	34	24	–	–	–	–
Unknown	4	3	21	100	15	100
N stage
N0	71	50	–	–	–	–
N1	70	49	–	–	–	–
Unknown	1	1	21	100	15	100
Histology
IDC	110	77	–	–	14	93
ILC	5	4	–	–	–	–
Invasive mixed	2	1	–	–	–	–
Other	5	4	–	–	1	7
Unknown	20	14	21	100	–	–