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Table 4 Performance of four different tests for rivaroxaban monitoring (threshold: 50 ng/mL)

From: Comparison of different laboratory tests in the evaluation of hemorrhagic risk of patients using rivaroxaban in the critical care setting: diagnostic accuracy study

Test Sensitivity (%, 95% CI) Specificity (%, 95% CI) PPV (%, 95% CI) NPV (%, 95% CI)
PT 94 (80–99) 65 (50–79) 67 (57–75) 94 (79–98)
aPTT 76 (59–89) 72 (57–84) 67 (55–77) 80 (69–89)
dRVVs 100 (90–100) 13 (5–26) 46 (43–49) 100
dRVVc 100 (90–100) 20 (9–34) 48 (44–51) 100
  1. PPV positive predictive value, NPV negative predictive value, CI confidence interval