Table 3.
Optimal cutoff values of identified risk factors for NAFLD (n=13240)
| Variable | Cutoff value | Sensitivity (%) | Specificity (%) | Youden Index (%) |
|---|---|---|---|---|
| Age (years) | 38.500 | 65.716 | 55.173 | 20.889 |
| ALT (U/L) | 14.500 | 73.225 | 54.313 | 27.538 |
| UA (mmol/l) | 279.500 | 70.896 | 60.163 | 31.060 |
| FBG (mmol/l) | 5.285 | 44.412 | 72.618 | 17.030 |
| TC (mmol/l) | 4.125 | 69.558 | 41.729 | 11.286 |
| TG (mmol/l) | 1.085 | 70.140 | 67.436 | 37.576 |
| HDL-c (mmol/l) | 1.395 | 69.499 | 53.992 | 23.492 |
| BMI (kg/m2) | 21.517 | 77.183 | 61.847 | 39.030 |
NAFLD, nonalcoholic fatty liver disease; BMI, body mass index; FBG, fasting plasma glucose; TC, total cholesterol; TG, triglyceride; HDL-c, high-density lipoprotein cholesterol; UA, uric acid; ALT, alanine aminotransferase.