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Table 2 Diagnostic performance of US assessment in thyroid nodules according to the underlying echogenicity of the thyroid parenchyma

From: Heterogeneous echogenicity of the underlying thyroid parenchyma: how does this affect the analysis of a thyroid nodule?

  Heterogeneous echogenicity on US Homogeneous echogenicity on US P-value
Sensitivity 82.4% (56/68) 86.8% (223/257) 0.354
Specificity 76.3% (190/249) 83.7% (732/875) 0.009
Positive predictive value 48.7% (56/115) 60.9% (223/366) 0.02
Negative predictive value 94.1% (190/202) 95.6% (732/766) 0.378
Accuracy 77.6% (246/317) 84.4% (955/1132) 0.005