Area under the ROC curve (AUROC) and optimal cut-off points for waist circumference, waist-to-height ratio, and BMI to detect NAFLD
| AUROC (95% CI) | Cut-off point | Sensitivity | Specificity | Youden J-index | |
|---|---|---|---|---|---|
| WC (cm) | 0.776 (0.731-0.822) | 76.5 | 76 | 67 | 0.43 |
| BMI (kg/m²) | 0.775 (0.728-0.822) | 23.0 | 85 | 56 | 0.41 |
| WHtR | 0.792 (0.748-0.836) | 0.49 | 72 | 74 | 0.46 |
WC, waist circumference; BMI, body mass index; WHtR, waist-to-height ratio.
Youden J-index=Sensitivity+Specificity-1.