A multivariable model of ultrasound and clinicopathological features for predicting axillary nodal burden of breast cancer: potential to prevent unnecessary axillary lymph node dissection

Table 4 Comparison of the multivariable in the training cohort

Variable	Odds Ratio	95% CI	P-value
Ki-67	0.496	0.135–1.818	0.290
Longitudinal to transverse ratio	1.242	0.581–2.658	0.576
Cortical thickness	3.300	1.598–6.817	0.001*
Absence of Hilum	2.207	1.031–4.727	0.042*
Tumor size	2.389	1.214–4.698	0.012*

ISSN: 1471-2407