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Table 4 Validity of both scores for predicting survival outcome using the consensus data

From: A simple chest CT score for assessing the severity of pulmonary involvement in COVID-19

  Simple CT score Current CT score P-Value
Cutoff >  3 >  12  
Number of true-positive findings 18 19  
Number of false-negative findings 4 3  
Number of false-positive findings 7 12  
Number of true- negative findings 184 179  
AUC 0.89
[0.84–0.93]
0.90
[0.85–0.94]
0.615
Sensitivity (%) 81.8 (18/22)
[59.7–94.8]
86.4 (19/22)
[65.1–97.1]
0.244
Specificity (%) 96.3 (184/191)
[92.6–98.5]
93.7 (179/191)
[89.3–96.7]
0.313
PPV (%) 72 (18/25)
[50.6–87.9]
61.3 (19/31)
[47.2–73.7]
0.025
NPV (%) 97.9 (184/188)
[94.6–99.4]
98.4 (179/182)
[95.3–99.6]
0.981
Accuracy (%) 94.8 (202/213)
[91.5–98.4]
93 (198/213)
[89.2–96.1]
0.566
  1. Data in parentheses were used to calculate percentages. Data in brackets are 95% confidence intervals
  2. CT computed tomography, PPV positive predictive value, NPV negative predictive value, AUC area under curve