Identification of Risk Factors Associated with Axillary Lymph Node Metastasis for Sentinel Lymph Node-Positive Breast Cancer Patients

Table 4

The results of multivariate logistic regression analysis of the association between the indicated variables and the likelihood of having N2 disease.

	value	OR	95.0% CI
			Lower	Upper
LVI	0.013	1.892	1.145	3.127
Number of positive SLNs	<0.001	4.366	2.639	7.223
SLN metastasis ratio	0.002	2.432	1.396	4.236
HER2 overexpression	0.037	1.792	1.036	3.101

LVI, lymphovascular invasion; SLN, sentinel lymph node; HER2, human epidermal growth factor receptor 2; OR, odds ratio; CI, confidence interval.