Table 3.

Clinicopathological characteristics of pre-NAC according to clinical and pathological response

Characteristic	Clinical response			Pathology response
	cRes	Non-cRes	P value	pCR	Non-pCR	P value
Age (year)			0.384			0.466
< 40	95	35		20	113
≥ 40	610	270		111	766
Menopause			0.058			0.962
Yes	265	134		52	347
No	440	171		79	532
Tumor size (cm)			< 0.001			0.039
< 4	391	205		88	505
≥ 4	314	100		43	371
Clinical nodal status			0.03			0.289
Yes	346	127		67	406
No	359	178		64	473
ER status			0.904			< 0.001
Positive	442	190		56	576
Negative	263	115		75	303
PR status			0.542			< 0.001
Positive	332	150		32	450
Negative	373	155		99	429
Her2 status			0.092		318	0.233
Positive	270	96		48
Negative	348	166		54	460
Ki67 expression (%)			< 0.001			< 0.001
< 14	182	113		16	279
≥ 14	523	192		115	600

cRes pCR and cPR, Non-cRes cPD and cSD