Table 2.
Results of a Receiver Operating Characteristic Analysis of the CWA-APTT or sTF/FIXa for Diagnosing ACI Without Anticoagulants Versus Control Group Without ACI.
| AUC | Cut-off value | Sensitivity (%) | Odds ratio | ||
|---|---|---|---|---|---|
| CWA-APTT | 2nd DPT | 0.586 | 32.8 s | 58.8 | 2.04 |
| 1st DPT | 0.614 | 35.8 s | 60.7 | 2.35 | |
| FFT | 0.625 | 37.6 s | 59.0 | 2.19 | |
| 2nd DPH | 0.843 | 866 mm Abs | 75.9 | 9.64 | |
| 1st DPH | 0.880 | 292 mm Abs | 75.4 | 9.62 | |
| FFH | 0.897 | 222 mm Abs | 79.3 | 15.7 | |
| sTF/FIXa | 2nd DPT | 0.602 | 68.7 s | 55.7 | 1.56 |
| 1st DPT | 0.562 | 85.4 s | 56.2 | 1.41 | |
| FFT | 0.571 | 86.6 s | 57.4 | 1.86 | |
| 2nd DPH | 0.749 | 41.3 mm Abs | 70.5 | 5.62 | |
| 1st DPH | 0.893 | 83.8 mm Abs | 77.2 | 10.5 | |
| FFH | 0.743 | 338 mm Abs | 66.7 | 4.78 |
ACI, acute cerebral infarction; CWA, clot waveform analysis; APTT, activated partial thromboplastin time; sTF/FIXa, small amount of tissue factor-induced factor IX activation; second DPT, second derivative peak time; first DPT, first derivative peak time; FFT, fibrin formation time; second DPH, second derivative peak height; first DPH, first derivative peak height; FFT, fibrin formation height; mm Abs, mm absorbance.