| Study | Sensitivity | Specificity | PPV | NPV |
| Present study | 51.85% | 95.69% | 43.75% | 96.85% |
| Ducey et al. | 57% | 98% | 75% | - |
| Blix et al. | 15% | 95% | 16% | 97% |
| Ingemarsson | 23.5% | 99.4% | 40% | 98.7% |
| Rahman et al. | 60% | 94.8% | 56.8% | 88.6% |