Correlation and predictive value of pathological complete response and ultrasound characteristic parameters in neoadjuvant chemotherapy for breast

Table 3 Comparison of general data and pathological data between pathological complete response group and non-pathological complete response group

Index	PCR group, n = 59	Non PCR group, n = 119	t/χ2	P value
Age in year	44.8 ± 5.2	46.1 ± 6.4	-1.354	0.178
BMI in kg/m2	22.62 ± 1.33	22.85 ± 1.41	-1.044	0.298
Menstrual status			1.447	0.229
Menopause	16 (27.12)	43 (36.13)
Premenopausal	43 (72.88)	76 (63.87)
Affected side distribution			0.634	0.426
Left	27 (45.76)	62 (52.1)
Right	32 (54.24)	57 (47.9)
Pathological type			0.565	0.452
Infiltrating ductal carcinoma	48 (81.36)	102 (85.71)
Other types	11 (18.64)	17 (14.29)
Pathological staging			4.893	0.027
II stage	18 (30.51)	57 (47.9)
III stage	41 (69.49)	62 (52.1)
Lymph node metastasis			3.898	0.048
Yes	11 (18.64)	39 (32.77)
No	48 (81.36)	80 (67.23)
Vascular invasion			8.128	0.004
Yes	34 (57.63)	93 (78.15)
No	25 (42.37)	26 (21.85)
Ki-67			5.704	0.017
Positive	22 (37.29)	67 (56.3)
Negative	37 (62.71)	52 (43.7)
HER-2			2.706	0.100
Positive	33 (55.93)	51 (42.86)
Negative	26 (44.07)	68 (57.14)
ER			3.497	0.061
Positive	21 (35.59)	60 (50.42)
Negative	38 (64.41)	59 (49.58)

Data are n (%). BMI: Body mass index; PCR: Pathological complete response.