Table 5.

ROC Models. Univariate and multivariate models.

Model		AUC	p Value	95% CI		Sensitivity	95% CI		Specificity	95% CI		LR +	95% CI		LR −	95% CI
Univariate models	Positive ultrasound	0.600	0.015	0.52	0.67	0.918	0.838	0.965	0.281	0.216	0.354	1.3	1.1	1.4	0.3	0.1	0.7
	Ultrasound 4 level	0.654	<0.001	0.58	0.72	0.877	0.787	0.937	0.369	0.297	0.445	1.4	1.2	1.6	0.3	0.2	0.6
	Score	0.761	<0.001	0.68	0.83	0.767	0.661	0.852	0.694	0.619	0.761	2.5	1.9	3.3	0.3	0.2	0.5
	Score > 9	0.730	<0.001	0.66	0.80	0.767	0.661	0.852	0.694	0.619	0.761	2.5	1.9	3.3	0.3	0.2	0.5
Multivariate models	Positive Ultrasound	0.738	<0.001	0.66	0.80	0.658	0.544	0.759	0.725	0.652	0.790	2.4	1.8	3.2	0.5	0.3	0.7
	Ultrasound 4 level	0.743	<0.001	0.67	0.81	0.644	0.530	0.746	0.731	0.659	0.795	2.4	1.8	3.3	0.5	0.4	0.7
	Score	0.762	<0.001	0.69	0.83	0.767	0.661	0.852	0.700	0.626	0.767	2.6	2.0	3.3	0.3	0.2	0.5
	Score > 9	0.755	<0.001	0.68	0.82	0.767	0.661	0.852	0.694	0.619	0.761	2.5	1.9	3.3	0.3	0.2	0.5