Table 3.

Multivariate logistic regression analysis of clinicopathologic variables predicting the ability to achieve residual tumor size ≤ 3 cm after neoadjuvant chemotherapy

Parameter	Adjusted OR	95% Confidence interval	p-value
ER			0.0023
Positive	0.483	0.302-0.771
Negative	1
Ki-67 level (%)			0.0148
≥ 15	1.827	1.125-2.966
< 15	1
DCIS component			< 0.0001
Yes	0.323	0.198-0.527
No	1
Initial tumor size (cm)	0.674	0.594-0.766	< 0.0001
C-statistics=0.778

OD, odds ratio.