Table 4.
Threshold values for NAFLD presence using receiver operating characteristic curves from logistic regression analysis (N = 676)
| Sens (%) | Spec (%) | Odds ratio | p value | AUC | BIC | |
|---|---|---|---|---|---|---|
| BMI (≥ 23.7 vs. < 23.7) kg/m2 | 65.9 | 71.4 | 1.27 (1.21–1.34) | < 0.0001 | 0.735 | 808 |
| AST/ALT ratio (≤ 1.25 vs. > 1.25) | 70.4 | 63.1 | 0.18 (0.11–0.28) | < 0.0001 | 0.703 | 848 |
| Alb (≥ 41 vs. < 41) g/L | 67.0 | 52.9 | 1.11 (1.07–1.16) | < 0.0001 | 0.628 | 890 |
| PA% (≥ 24.5 vs. < 24.5) | 37.6 | 84.5 | 1.39 (1.25–1.55) | < 0.0001 | 0.641 | 874 |
| DGLA (≥ 97.1 vs. < 97.1) µmol/L | 64.0 | 67.7 | 1.02 (1.01–1.02) | < 0.0001 | 0.676 | 853 |
Alb albumin, ALT alanine aminotransferase, AST aspartate aminotransferase, AUC area under the curve, BIC Bayesian information criterion, BMI body mass index, DGLA dihomo-gamma-linolenic acid, P probability, PA palmitic acid, Sens sensitivity, Spec specificity, % weight percentage of total fatty acids