A Predictive Model for Nonsentinel Node Status after Sentinel Lymph Node Biopsy in Sentinel Lymph Node-Positive Chinese Women with Early Breast Cancer

Table 3

Multivariate analysis of non-SLN status in 228 SLN-positive patients with early breast cancer.

Factors	Coefficient	S.E.	Wald		OR	95% CI
Age
≤35	1.000				1.000
>35	0.990	0.633	2.447	0.118	2.691	0.779–9.302
Tumor size (cm)	0.267	0.123	4.734	0.030	1.307	1.027–1.663
Multifocality
No	1.000				1.000
Yes	1.443	0.599	5.801	0.016	4.235	1.308–13.709
Lymphovascular invasion
No	1.000				1.000
Yes	1.078	0.451	5.707	0.017	2.940	1.241–7.121
Number of metastatic SLN	0.471	0.221	4.552	0.033	1.602	1.039–2.469
Number of nonmetastatic SLN	−0.618	0.242	6.519	0.011	0.539	0.336–0.866
Constant	−2.541	0.802	10.030	0.002	0.079