Table 3.
Cutoff Value of Cardiac Biomarkers 72 Hours after ICU Admission
| Cardiac Biomarkers | Normal Reference Range | Cutoff Value | AUC | Sensitivity, % | Specificity, % | P |
|---|---|---|---|---|---|---|
| CK | 24–180 U/L | 180.12 | 0.939 | 89.5 | 92 | <0.01* |
| CK-MB | <25 IU/mL | 108.5 | 0.638 | 52.6 | 60 | 0.12 |
| BNP | <100 pg/mL | 398.5 | 0.739 | 89.5 | 68 | <0.01* |
| hs-cTnI | 0.02–0.06 ng/mL | 0.025 | 0.798 | 73.7 | 76 | <0.01* |
*P < 0.05 was considered statistically significant.
AUC, area under the receiver operating characteristic curve; BNP, B-type natriuretic peptide; CK, creatine kinase; CK-MB, creatine kinase-MB; hs-cTnI, high-sensitivity cardiac troponin I; ICU, intensive care unit.