Table 4. Logistic regression analysis of suspicious conventional US features and SWS imagine indices for predicting malignancy.

Parameter	β	SE	OR (95% CI)	P Value
Univariate analysis
Conventional US risk factor
Poorly-defined Margin	2.342	0.293	10.407 (5.8585,18.486)	0.000*
Microcalcification	1.599	0.255	4.950 (3.005, 8.154)	0.000*
Solid Component	1.504	0.349	4.501 (2.270,8.924)	0.000*
Taller-than-wide shape	1.186	0.262	3.272 (1.959,5.466)	0.000*
Hypoechogenicity	0.976	0.253	2.654 (1.616,4.360)	0.000*
SWS imagine risk factor
E-mean ≥ 2.46 m/s	2.108	0.283	8.229 (4.727,14.327)	0.000*
E-max ≥ 3.52 m/s	1.074	0.137	2.296 (2.238,3.825)	0.000*
E-mean ≥ 23.00 kpa	0.117	0.017	1.124 (1.088,1.161)	0.000*
E-max ≥ 47.00 kpa	0.043	0.006	1.044 (1.032,1.056)	0.000*
Multivariate analysis
Conventional US risk factor
Poorly-defined Margin	2.053	0.439	7.792 (3.295,18.424)	0.000*
Taller-than-wide shape	1.151	0.392	3.160 (1.466,6.812)	0.003*
Microcalcification	0.885	0.367	2.422 (1.179, 4.975)	0.016*
SWS imagine risk factor
E-max ≥ 3.52 m/s	2.819	1.010	16.760 (2.317,121.257)	0.005*
E-max ≥ 47.00 kpa	0.090	0.046	0.914 (0.835,0.999)	0.045*

SWS imagine = shear wave speed imagine ; E-max = the max value of shear wave speed imagine; E-mean = the mean value of shear wave speed imagine

Note.- ^β, regression coefficient; SE, standard error; OR, odds ratio; CI, confidence interval