Table 4 ROC curves of MPV, leukocyte and CRP
From: Mean platelet volume is useful for predicting weaning failure: a retrospective, observational study
Characteristics | MPV, fl | Leukocyte, × 10.9/L | CRP,mg/L |
|---|---|---|---|
Cutoff value | > 11.3 | > 8.9 | > 67 |
Sensitivity, % | 55.56 | 72.22 | 57.41 |
Specificity, % | 87.92 | 50.24 | 65.7 |
Positive predictive value, % | 54.5 | 27.5 | 30.4 |
Negative predictive value, % | 88.3 | 87.4 | 85.5 |
Diagnostic accurary, % | 81.22 | 51.7 | 63.9 |
Likehood ratio of positive test | 4.6 | 1.45 | 1.67 |
Likehood ratio of negative test | 0.51 | 0.55 | 0.65 |
Youden's index | 0.43 | 0.22 | 0.23 |
AUC | 0.777 | 0.6 | 0.627 |
95% CI | 0.722–0.826 | 0.538 -0.66 | 0.565–0.685 |
P | < 0.0001 | 0.0236 | 0.0014 |