Table 3.

Multivariate logistic regression analysis of ALN status in the training cohort

Characteristics	Coefficient	Odds ratio (95% CI)	P value
Age	−0.0184	0.9818 (0.9663-0.9972)	0.002*
BI-RADS category	0.3811	1.4638 (1.2499-1.7194)	<0.001*
Nuclear grade	0.3896	1.4764 (1.1394-1.9230)	0.003*
US-ALN	0.7001	2.0140 (1.4050-2.8901)	<0.001*

CI confidence interval, US-ALN axillary lymph nodes status reported by axillary ultrasound.