Table 4.

Performance measures for COVID-19

Parameters	Formula
Accuracy	$\frac{\mathrm{TP}+\mathrm{TN}}{\mathrm{TP}+\mathrm{TN}+\mathrm{FP}+\mathrm{FN}}$
Sensitivity or recall	$\frac{\mathrm{TP}}{\mathrm{TP}+\mathrm{FN}}$
Specificity	$\frac{\mathrm{TN}}{\mathrm{TN}+\mathrm{FP}}$
Precision	$\frac{\mathrm{TP}}{\mathrm{TP}+\mathrm{FP}}$
F1 Score	2 $\frac{\text{Precision}\mathrm{x}\text{Recall}}{\text{Precision}+\text{Recall}}$
True Positive Rate	$\frac{\mathrm{TP}}{\mathrm{TP}+\mathrm{FN}}$
False Positive Rate	$\frac{\mathrm{FP}}{\mathrm{FP}+\mathrm{TN}}$