Table 2

 Sensitivity, specificity, NPV, and PPV of the investigated d-dimer assays

TestSensitivity %Specificity %NPV %PPV %
The figures in parentheses are the 95% confidence intervals.
Simplify94.1 (87.7 to 100)40.4 (32.2 to 48.7)94.8 (91.0 to 98.6)37.2 (28.9 to 45.6)
SimpliRED74.5 (62.5 to 86.5)83.1 (76.8 to 89.4)89.7 (82.0 to 97.3)62.3 (50.1 to 74.5)
Auto d-dimer90.2 (82.0 to 98.4)43.4 (35.1 to 51.7)92.2 (87.4 to 96.9)37.4 (28.8 to 45.9)