Table 3.
Sensitivity and specificity of the Triglyceride-glucose index and Triglyceride-glucose index-BMI compared to ultrasound in the diagnosis of NAFLD
| Ultrasound diagnosis | Sensitivity | Specificity | PPV | NPV | ||||
|---|---|---|---|---|---|---|---|---|
| NAFLD present |
NAFLD absent |
Total | ||||||
| TyG | > 8.99 | 39 | 26 | 65 | 39/55 = 70.9% | 100/126 = 79.3% | 39/65 = 60.0% | 100/116 = 86.2% |
| ≤8.99 | 16 | 100 | 116 | |||||
| Total | 55 | 126 | 181 | |||||
| TyG-BMI | > 312 | 33 | 31 | 64 | 33/55 = 60.0% | 95/126 = 75.4% | 33/64 = 51.6% | 95/117 = 81.2% |
| ≤312 | 22 | 95 | 117 | |||||
| Total | 55 | 126 | 181 | |||||
NAFLD Non-alcoholic fatty liver disease, PPV Positive predictive value, NPV Negative predictive value, TyG Triglyceride-glucose index, TyG-BMI Triglyceride-glucose index-BMI