Table 4 Performance of influenza versus COVID-19-positive and influenza versus others (COVID-19-positive/-negative) classification models on the external validation cohort.

From: A vital sign-based prediction algorithm for differentiating COVID-19 versus seasonal influenza in hospitalized patients

Performance measure

COVID-19-positive vs influenza

Influenza vs others

AUC

0.928

0.914

Accuracy

0.858

0.863

F1 score

0.838

0.874

Sensitivity (recall)

0.806

0.931

Specificity

0.901

0.791

PPV (precision)

0.872

0.824

NPV

0.847

0.916

FPR

0.099

0.209

FDR

0.128

0.176

FNR

0.194

0.069

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