Table 3.

Descriptive statistics of B-mode and elastographic parameters discriminating benign from malignant thyroid lesions (PPV, positive predictive value; NPV, negative predictive value; sensitivity, specificity, Youden index, sum-sensitivity+specificity).

Parameter	Youden index	Sensitivity (%)	95% CI (sensitivity)	Specificity (%)	95% CI (specificity)	PPV (%)	95% CI (PPV)	NPV (%)	95% CI (NPV)	Sum
Margins	0.51	66.33	56.51–74.91	84.54	78.99–88,83	67.01	57.16–75.56	84.13	78.56–88.47	302.01
Markedly hypoechoic	0.21	28.57	20.57–38.19	92.75	88.39–95.56	65.12	50.17–77.58	73.28	67.62–78.28	259.72
Microcalcifications	0.37	64.29	54.43–73.07	72.95	66.52–78.54	52.94	44.02–61.68	81.18	74.96–86.15	271.36
Thyroid capsule infiltration	0.22	37.76	28.79–47.64	84.06	78.46–88.42	52.86	41.32–64.10	74.04	68.08–79.23	248.71
Macrocalcifications	0.21	38.78	29.73–48.67	82.61	76.86–87.17	51.35	40.18–62.39	74.03	68.01–79.25	246.76
Asteria scale	0.34	44.90	35.43–54.75	89.37	84.43–92.88	66.67	54.66–76.84	77.41	71.69–82.25	278.34
“Halo” pattern	0.17	94.90	88.61–97.80	21.74	16.66–27.85	36.47	30.80–42.54	90.00	78.64–95.65	243.11
Composition (solid)	0.16	69.39	59.68–77.64	46.86	40.18–53.65	38.20	31.38–45.52	76.38	68.28–82.92	230.83
Tall/wide	0.17	68.37	58.62–76.73	48.31	41.59–55.09	38.51	31.60–45.91	76.34	68.37–82.80	231.52