II. Indications
- Hepatitis B risk for fibrosis
- Nonalcoholic Fatty Liver Disease assessment for Fibrosis (NASH)
III. Criteria
- Score = (Age x AST) / ( x sqrRoot(ALT))
IV. Interpretation
- Score <1.45: Good Negative Predictive Value (80% for Hepatitis CVirus related fibrosis)
- Score >3.25 (>2.67 in NAFLD): Positive Predictive Value >80%
V. Efficacy
- Test Sensitivity: 85%
- Test Specificity: 65%