Table 3.
Diagnostic performances of four cardiac biomarkers for the early diagnosis of AMI within 3 h and 3–6 h after the onset of chest pain
| Sensitivity | Specificity | PPV | NPV | |||||
|---|---|---|---|---|---|---|---|---|
| 0–3 h | 3–6 h | 0–3 h | 3–6 h | 0–3 h | 3–6 h | 0–3 h | 3–6 h | |
| CK-MB (IU/L) |
23.1 | 52.9 | 61.5 | 58.8 | 37.5 | 56.3 | 44.5 | 55.6 |
| Troponin I (µg/L) |
96.2 | 100 | 100 | 100 | 100 | 100 | 96.3 | 100 |
| Myoglobin (ng/mL) |
73.1 | 88.2 | 76.9 | 70.6 | 76.0 | 75.0 | 74.1 | 85.7 |
| H-FABP (ng/mL) |
92.3 | 94.1 | 88.5 | 79.4 | 88.9 | 82.1 | 92.0 | 93.1 |
PPV positive predictive value, NPV negative predictive value