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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