TABLE 3.
Comparison of diagnostic performance for advanced hepatic fibrosis (MRE cut-off values ≥ 3.6) according to the various cut-off values of FIB-4.
| Sensitivity | Specificity | PPV | NPV | Accuracy | |
| FIB-4 to use low cut-off; 1.3 (2.0) | |||||
| Total subjects | 69.6 | 77.5 | 4.9 | 99.3 | 77.4 |
| Metabolically healthy group | 64.0 | 78.2 | 2.2 | 99.6 | 78.1 |
| FIB-4 to use low cut-off; 0.9 | |||||
| Total subjects | 92.2 | 42.1 | 2.6 | 99.7 | 42.9 |
| Metabolically healthy group | 100.0 | 43.6 | 1.3 | 100 | 44.0 |
| FIB-4 to use low cut-off; 1.0 | |||||
| Total subjects | 90.2 | 52.2 | 3.1 | 99.7 | 52.8 |
| Metabolically healthy group | 96.0 | 53.8 | 1.6 | 99.9 | 54.1 |
| FIB-4 to use low cut-off; 1.1 | |||||
| Total subjects | 87.3 | 60.9 | 3.6 | 99.7 | 61.3 |
| Metabolically healthy group | 92.0 | 61.9 | 1.8 | 99.9 | 62.2 |
| FIB-4 to use low cut-off; 1.2 | |||||
| Total subjects | 83.3 | 69.0 | 4.3 | 99.6 | 69.2 |
| Metabolically healthy group | 80.0 | 69.8 | 2.0 | 99.8 | 69.9 |
| FIB-4 to use low cut-off; 1.3 | |||||
| Total subjects | 75.5 | 75.4 | 4.9 | 99.5 | 75.4 |
| Metabolically healthy group | 76.0 | 76.7 | 2.4 | 99.8 | 76.7 |
FIB-4, fibrosis-4 index; MRE, magnetic resonance elastography; NFS, non-alcoholic fatty liver disease fibrosis score; NPV, negative predictive value; PPV, positive predictive value.