Table 2.
Coagulation parameters of COVID-19 patients
| All patients (n = 150) | |
|---|---|
| Baseline coagulation parameters | |
| Platelet count (109/L)—normal range: 150–400.109/L | 200 [152; 267] |
| aPTT—normal range: 0.7–1.2 | 1.2 [1.1; 1.3] |
| PT (%)—normal range: > 70% | 84 [73; 91] |
| INR—normal range: 1.00–1.15 | 1.12 [1.05; 1.25] |
| D-dimers (mg/L)—normal range: < 0.5 mg/L | 2.27 [1.16; 20] |
| Fibrinogen (g/L)—normal range: 2–4 g/L | 6.99 [6.08; 7.73] |
| Antithrombin activity (%)—normal range: 50–150% | 91 [78; 102] |
| Factor V (%)—normal range: > 70% | 136 [115; 150] |
| Factor VIII (%)—normal range: 60–150% | 341 [258; 416] |
| vWF activity (%) | 328 [212; 342] |
| vWF antigen (%)—normal range: 50–150% | 455 [350; 521] |
| Lupus anticoagulanta—n (%) | 50/57 (87.7) |
| Screen patient (s) | 68.6 [59.5; 85.4] |
| Screen ratio—normal range: < 1.2 | 1.63 [1.43; 2.04] |
| Confirm patient (s) | 43.9 [40.9; 48.4] |
| Confirm ratio—normal range: < 1.2 | 1.25 [1.13; 1.46] |
| Screen/confirm ratio—normal range: < 1.2 | 1.4 [1.25; 1.48] |
All results are given in median [IQR], except if specified otherwise
aPTT, activated partial thromboplastin time; INR, international normalized ratio; PT, prothrombin time; vWF, von Willebrand factor
aMeasured during ICU stay