Table 4. Diagnostic value of H-FABP, TnI and CK-MB in NSTEMI diagnosis, according to admission time after onset of symptoms (≤ 3, 3–6 and > 6 hours).
| ≤ 3 hours (n = 15) | 3–6 hours (n = 19) | > 6 hours (n = 14) | |
| H-FABP | |||
| Sensitivity (%) | 89 | 70 | 100 |
| Specificity (%) | 100 | 89 | 89 |
| NPV (%) | 86 | 73 | 100 |
| PPV (%) | 100 | 88 | 83 |
| AI (%) | 93 | 78 | 92 |
| TnI | |||
| Sensitivity (%) | 33 | 70 | 100 |
| Specificity (%) | 100 | 67 | 89 |
| NPV (%) | 50 | 67 | 100 |
| PPV (%) | 100 | 70 | 83 |
| AI (%) | 60 | 68 | 92 |
| CK-MB mass | |||
| Sensitivity (%) | 22 | 50 | 100 |
| Specificity (%) | 100 | 89 | 100 |
| NPV (%) | 46 | 62 | 100 |
| PPV (%) | 100 | 83 | 100 |
| AI (%) | 53 | 68 | 100 |