Table 2.

Comparison of discriminative performance of two methods

a) Method 1
Absolute riskSensitivitySpecificityPPV (0.10)*PPV (0.15)*PPV (0.20)*
0.110.560.600.140.200.26
0.220.320.840.180.260.33
0.330.040.990.350.460.54
b) Method 2
Absolute riskSensitivitySpecificityPPV (0.10)*PPV (0.15)*PPV (0.20)*
0.110.610.540.130.190.25
0.220.160.930.210.300.37
0.330.050.990.380.490.58
  • *PPV (assumed prevalence).