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Table 5 Performance results of the three radiologists for differentiation between COVID-19- and non-COVID-19-associated GGO after exclusion of viral pneumonias

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 40 24 11 86.25% (77–93%) 62.5% (49–74%) 74.2% (67–80%) 78.4% (67–87%) 75.7% (68–82%)
Radiologist 2 72 45 19 8 90% (81–95%) 70.3% (57–81%) 79.1% (72–85%) 84.9% (74–92%) 81.2% (74–87%)
Radiologist 3 61 34 30 19 76.25% (65–85%) 53.1% (40–66%) 67% (60–73%) 64.1% (53–74%) 65.9% (58–74%)