Table 7.

Association of PD-L1 staining with estrogen receptor/progesterone receptor-positive and triple-negative status in sTIL subgroups in patients without neoadjuvant chemotherapy

	TC				TCIC				IC
	sTIL < 10%		sTIL ≥10%		sTIL < 10%		sTIL ≥10%		sTIL < 10%		sTIL ≥10%
PD-L1	Neg	Pos	Neg	Pos	Neg	Pos	Neg	Pos	Neg	Pos	Neg	Pos
ER/PR pos	195	10	26	13	188	17	17	22	195	10	18	21
TNBC	21	0	32	6	21	0	20	18	21	0	20	18
Fisher P value	0.6044		0.1121		0.3787		0.4917		0.6044		0.6509

ER estrogen receptor, PR progesterone receptor, TNBC triple-negative breast cancer, sTIL stromal tumor infiltrating lymphocytes, pos positive, neg negative