Table III.
Optimal cutoff of d-dimer values to predict deep venous thrombosis (DVT) in patients with novel coronavirus disease 2019 (COVID-19) infection
| d-Dimer cutoff, ng/mL | Prevalence, % | AUC | Sensitivity, % | Specificity, % | PPV, % | NPV, % |
|---|---|---|---|---|---|---|
| 1450 | 47.9 | 0.63 | 85.3 | 40.5 | 56.9 | 75 |
| 1950 | 47.9 | 0.64 | 76.5 | 51.4 | 59.1 | 70.4 |
| 2450a | 47.9 | 0.65 | 70.6 | 59.5 | 61.5 | 68.8 |
| 2950 | 47.9 | 0.6 | 58.8 | 62.2 | 58.8 | 62.2 |
| 3450 | 47.9 | 0.63 | 55.9 | 70.3 | 63.3 | 63.4 |
| 3950 | 47.9 | 0.59 | 44.1 | 73 | 60 | 58.7 |
AUC, Area under the curve; NPV, negative predictive value; PPV, positive predictive value.
a
Optimal cutoff based on the Youden Index for d-dimer to predict DVT.