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Diagnostic performance for acute phase of TTP of the HemosIL AcuStar ADAMTS13 Activity assay in 539 plasma samples
| FRETS‐VWF73 | |||
|---|---|---|---|
| <10 IU/dL (n = 142) | ≥ 10 IU/dL (n = 397) | ||
| HemosIL AcuStar ADAMTS13 Activity assay | <10 IU/dL (n = 129) | 128 | 1 |
| ≥ 10 IU/dL (n = 410) | 14 | 396 | |
| Sensitivity (%) | 90.1 | ||
| Specificity (%) | 99.7 | ||
| Positive predictive value (%) | 99.2 | ||
| Negative predictive value (%) | 96.6 | ||
| Cohen’s kappa coefficient | 0.93 | ||
