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Table 2 Calculated sensitivities, specificities, predictive values and the Youden index at different cut-off values

From: TIMP-2/IGFBP7 predicts acute kidney injury in out-of-hospital cardiac arrest survivors

Cut-off value Sensitivity Specificity Youden index PPV NPV
0.10 100.0 52.9 52.9 79.5 100.0
0.20 96.8 88.2 85.0 93.8 93.8
0.24 96.8 94.1 90.9 96.8 94.1
0.30 71.0 94.1 65.1 95.7 64.0
0.40 67.7 94.1 61.9 95.5 61.5
0.50 54.8 94.1 49.0 94.4 53.3
0.60 45.2 94.1 39.3 93.3 48.5
  1. PPV positive predictive value, NPV negative predictive value