Table 3.

Multivariate binary logistic regression in the training dataset.

Factor	β	B. E	Wals	P value	Exp (B)	95% CI
Microcalcification	2.125	0.831	6.533	0.011	8.374	1.641-42.724
Solid	1.479	0.555	7.105	0.008	4.388	1.479-13.016
Ill-defined border	1.482	0.719	4.242	0.039	4.401	1.074-18.031
Hypoechogenicity	1.079	0.535	4.066	0.044	2.940	1.031-8.3888
Intercept	-2.8219	0.459	-6.15	<0.0001

Those factors with statistically significance (P<0.01) in the univariate analysis were added to the logistic analysis. CI, confidence interval.