Table 4. Added Value of CAD System for Diagnosis of Malignant Thyroid Nodules according to Experience Level of Radiologists.

Diagnostic Measures (%)	Without CAD	With CAD	P
Accuracy
Resident	83.03 (76.52–88.02)	84.24 (77.86–89.04)	0.414
Fellow	83.03 (76.52–88.02)	84.85 (78.54–89.55)	0.083
Staff	95.76 (91.37–97.96)	96.36 (92.14–98.36)	0.317
Sensitivity
Resident	64 (44.00–80.09)	68 (47.84–83.12)	0.317
Fellow	72 (51.78–86.03)	72 (51.78–86.03)	N/A
Staff	84 (64.31–93.86)	84 (64.31–93.86)	N/A
Specificity
Resident	86.43 (79.70–91.17)	87.14 (80.51–91.75)	0.655
Fellow	85.00 (78.09–90.01)	87.14 (80.51–91.75)	0.083
Staff	97.86 (93.57–99.31)	98.57 (94.47–99.64)	0.317
PPV
Resident	45.71 (30.22–62.09)	48.57 (32.74–64.70)	0.396
Fellow	46.15 (31.35–61.67)	50.00 (34.22–65.78)	0.084
Staff	87.50 (67.62–95.91)	91.30 (71.12–97.82)	0.308
NPV
Resident	93.08 (87.23–96.36)	93.85 (88.18–96.89)	0.290
Fellow	94.44 (88.80–97.33)	94.57 (89.05–97.39)	0.141
Staff	97.16 (92.69–98.93)	97.18 (92.74–98.94)	0.368

NA = not applicable