Table 2

Diagnostic performance of HA in the validation set.

HA cut-off
Sensitivity (%)
Specificity (%)
NPV (%)
PPV (%)
Population involved (%)
Interpretation

<16
91
36
82
55
24
Absence of fibrosis (F0F1) (82% certainty)
>121
14
99
57
94
7
Presence of fibrosis (F2) (94% certainty)
≤ 25
78
53
89
34
46
Absence of severe fibrosis (F0F1F2) (89% certainty)
>160
22
100
81
100
5
Presence of severe fibrosis (F3) (100% certainty)
≤ 50
100
79
100
20
75
Absence of cirrhosis (F0F1F2F3) (100% certainty)
>237
31
99
96
57
3
Presence of cirrhosis (F4) (57% certainty)

Note 1: Accuracy = Sensitivity + Specificity + NPV + PPV. Note 2: Population involved stands for the proportion of patients who fall in the corresponding cut-off.

Halfon et al. Comparative Hepatology 2005 4:6   doi:10.1186/1476-5926-4-6