TABLE 6

Final Multivariate Logistic Regression Model for Predicting NSLN Metastasis

Variable	Coefficient	P
Sentinel lymphoscintigraphic pattern		<0.001
Intermediate vs. focal	0.793	0.025
Serpentine vs. focal	1.684	<0.001
No uptake vs. focal	2.201	0.001
No. of positive SLNs	0.471	0.024
No. of negative SLNs	0.164	0.148
Size of LN metastasis (mm)		0.129
2–10 vs. ≤2	1.366	0.024
10–20 vs. ≤2	1.470	0.025
>20 vs. ≤2	1.624	0.038
Perinodal extension	0.872	0.008
Size of primary breast tumor	0.021	0.109
Intercept	−5.337	<0.001