Table 2 ROC curve and diagnostic performance of hs-cTnI for identification of Type 5MI for patients with normal and elevated baseline hs-cTnI
From: High sensitivity troponin-I threshold to predict perioperative myocardial infarction
Peak hs-cTnI at 24 h | Fitted ROC AUC | Optimal cut off | Sensitivity (%) | Specificity (%) | Positive predictive value (%) | Negative predictive value (%) | |
|---|---|---|---|---|---|---|---|
Normal Baseline hs-cTnI | Before optimization | 0.577 | tenfold | 100 | 2.1 | 7.4 | 100 |
After optimization | 80-fold | 100 | 13.2 | 8.4 | 100 | ||
Elevated Baseline hs-cTnI | Before optimization | 0.745 | 1.2-fold | 100 | 25.3 | 6.5 | 100 |
After optimization | 2.7-fold | 100 | 40 | 12.3 | 100 |