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Table 3 Performance results of the three radiologists for differentiation between COVID-19- and non-COVID-19-associated GGO

From: Diagnostic performance of chest CT in differentiating COVID-19 from other causes of ground-glass opacities

  TP TN FP FN Sensitivity (95% CI) Specificity
(95% CI)
PPV
(95% CI)
NPV
(95% CI)
Accuracy (95% CI)
Radiologist 1 69 56 44 11 86.25% (77–93%) 56% (46–66%) 61.1% (55–66%) 83.6% (74–90%) 69.4% (62%–76%)
Radiologist 2 72 67 33 8 90% (81–95%) 67% (57–76%) 68.6% (62–74%) 89.3% (81–94%) 77.2% (70–83%)
Radiologist 3 61 45 55 19 76.25% (65–85%) 45% (35–55%) 52.6% (47–58%) 70.3% (60–79%) 59% (51–66%)