Research Article
Computed Tomography Features of Incidentally Detected Diffuse Thyroid Disease
Table 4
Diagnostic indices of CT detection for diffuse thyroid disease in 209 patients according to the number of individual CT features.
| CT
classification | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | Accuracy (%) | ROC (AUC) | 95% confidence interval |
| | 1 or more | 46/52 (88.5) | 73/157 (46.5) | 46/130 (35.4) | 73/79 (92.4) | 119/209 (56.9) | 0.6238 | 0.5660–0.6817 | | 2 or more | 40/52 (76.9) | 130/157 (82.8) | 40/67 (59.7) | 130/142 (91.5) | 170/209 (81.3) | 0.5421 | 0.4802–0.6039 | | 3 or more | 29/52 (55.8) | 150/157 (95.5) | 29/36 (80.6) | 150/173 (86.7) | 179/209 (85.6) | 0.7566 | 0.6865–0.8266 |
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PPV: positive predictive value; NPV: negative predictive value; ROC: receiver-operating characteristic analysis; AUC: area under curve.
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