Variable | Index | Formula | Cut-point |
---|---|---|---|
Biomarker | Fatty liver index | \(1/((1+exp(-x)))\times 100,\) |  ≥ 30 |
\(\begin{array}{c}x= 0.953 \times {log}_{e} \left(triglycerides\right)+ 0.139 \times BMI + 0.718 \times {log}_{e} \left(\gamma -glutamyl-transferase\right)\\ + 0.053 \times \left(waist\ circumference\right)- 15\end{array}\)Â Â | Â | ||
NAFLD liver fat scorea) | \(\begin{array}{c}-2.89 + 1.18 \times metabolic\ syndrome \left(yes =1, no =0\right)+ 0.45\times diabetes \left(yes =2, no =0\right)\\ + 0.15 \times (fasting\ insulin) + 0.04 \times AST + 0.94 \times \frac{AST}{ALT}\end{array}\)  |  > –0.64 | |
Hepatic steatosis index a) | \(8\times \frac{ALT}{AST}+BMI \left(+2, if\ diabetes; +2, if female\right)\)  |  > 36 | |
Image using quantitative computed tomography | Liver-to-spleen ratio | \(The\ mean\ value\ of\ liver\ ROI\ (HU)^\text{b)}/\ the\ mean\ value\ of\ spleen\ ROI\ (HU)\)  |  < 1.0 |