| Values | Absent LSS | Positive LPS | A line sign | Absent LSS + positive LPS |
| Sensitivity | 100% | 70.5% | 96.4% | 70% |
| Specificity | 94.4% | 100% | 71.8% | 100% |
| PPV | 94.8% | 100% | 73% | 100% |
| NPV | 100% | 68.9% | 96% | 68.9% |