Table 6 Optimal critical points (threshold) of TTP for the diagnosis of liver fibrosis in different stages
Stage | Thresholds | Sensitivity | Specificity | P value |
|---|---|---|---|---|
Stage S1 |  ≥ 1.714 | 0.917 | 0.800 | 0.000 |
Stage S2 |  ≥ 2.141 | 0.925 | 0.833 | 0.000 |
Stage S3 |  ≥ 2.852 | 0.928 | 0.911 | 0.000 |
Stage S4 |  ≥ 3.595 | 0.933 | 0.917 | 0.000 |