Table 3.

Sensitivity, specificity, PPV, and NPV of different D‐dimer cut‐off levels for predicting VTE in NCP patients

Cut‐off (µg/mL)	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)
1.0	85.0	77.0	54.8	94.0
1.5	85.0	88.5	70.8	94.7
2.0	80.0	90.2	72.7	93.2
2.5	70.0	93.4	77.8	90.5
3.0	70.0	96.7	87.5	90.8
3.5	65.0	96.7	86.7	89.4

Abbreviation: NCP, novel coronavirus pneumonia; NPV, negative predictive value; PPV, positive predictive value; VTE, venous thromboembolism.