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Table 10 Sensitivity, specificity, PPV, and NPV of the number of criteria for PTC

From: Ultrasound criteria for risk stratification of thyroid nodules in the previously iodine deficient area of Austria - a single centre, retrospective analysis

PTC ≥1 criterion ≥2 criteria ≥3 criteria ≥4 criteria 5 criteria
Sensitivity 93% 89% 64% 42% 9%
Specificity 16% 45% 75% 93% 99%
PPV 26% 34% 45% 66% 67%
NPV 88% 93% 87% 84% 77%