| Cohort 1 training set | Cohort 2 validation set | ||||
---|---|---|---|---|---|---|
CLD vs. controls | Fibrosis vs. cirrhosis | S0–2 vs. S3-4 | CLD vs. controls | Fibrosis vs. cirrhosis | S0–2 vs. S3-4 | |
Metabolite marker panel | ||||||
 AUROC (95% CI)# | 0.997 (0.993–1) | 0.941 (0.914–0.964) | 0.918 (0.889–0.946) | 0.977 (0.963–0.988) | 0.844 (0.797–0.884) | 0.807 (0.756–0.852) |
 AUPR (95% CI) | 0.994 (0.986–1) | 0.87 (0.824–0.913) | 0.892 (0.854–0.925) | 0.993 (0.989–0.997) | 0.827 (0.761–0.884) | 0.817 (0.764–0.866) |
 Cutoff value (sensitivity (%)/specificity (%)/F1 (%))†| 0.434 (98.4/99/98.7) | 0.01 (87/90.4/78.4) | − 0.115 (86.7/90.5/84.6) | 0.434 (92.2/94.4/95.2) | 0.01 (71.8/81.6/73.3) | − 0.115 (72.9/76.1/71.8) |
FIB-4 | ||||||
 AUROC (95% CI) | 0.848 (0.823–0.87) | 0.869 (0.829–0.906) | 0.802 (0.762–0.844) | 0.707 (0.652–0.762) | 0.758 (0.692–0.815) | 0.739 (0.68–0.798) |
 AUPR (95% CI) | 0.863 (0.84–0.883) | 0.725 (0.657–0.79) | 0.707 (0.651–0.761) | 0.897 (0.873–0.918) | 0.726 (0.657–0.794) | 0.726 (0.66–0.795) |
 Cutoff value 1 (sensitivity (%)/specificity (%)/F1 (%))* |  |  | 1.45 (68/73.6/62) |  |  | 1.45 (81.5/42.5/68.1) |
 Cutoff value 2 (sensitivity (%)/specificity (%)/F1 (%))* |  |  | 3.25 (44.2/93.4/56.3) |  |  | 3.25 (57/81.3/65.5) |
APRI | ||||||
 AUROC (95% CI) | 0.973 (0.965–0.981) | 0.698 (0.644–0.752) | 0.647 (0.595–0.698) | 0.879 (0.841–0.915) | 0.608 (0.534–0.671) | 0.595 (0.529–0.669) |
 AUPR (95% CI) | 0.977 (0.969–0.983) | 0.416 (0.345–0.497) | 0.492 (0.434–0.554) | 0.958 (0.942–0.972) | 0.53 (0.474–0.605) | 0.542 (0.488–0.614) |
 Cutoff value 1 (sensitivity (%)/specificity (%)/F1 (%))** |  | 1 (33.9/86.2/37.1) |  |  | 1 (22.7/84.4/32.4) |  |
 Cutoff value 2 (sensitivity (%)/specificity (%)/F1 (%))** |  | 2 (18.3/94.6/26.6) |  |  | 2 (3.9/94.3/8.5) |  |
AST/ALT | ||||||
 AUROC (95% CI) | 0.665 (0.631–0.697) | 0.815 (0.766–0.862) | 0.714 (0.668–0.759) | 0.603 (0.54–0.657) | 0.684 (0.619–0.75) | 0.667 (0.597–0.728) |
 AUPR (95% CI) | 0.714 (0.685–0.747) | 0.579 (0.496–0.674) | 0.582 (0.516–0.654) | 0.849 (0.819–0.875) | 0.641 (0.573–0.721) | 0.648 (0.583–0.727) |
 Cutoff value 1 (sensitivity (%)/specificity (%)/F1 (%))*** |  |  | 0.8 (48.1/84.8/54.2) |  |  | 0.8 (78.5/42.5/66.7) |
 Cutoff value 2 (sensitivity (%)/specificity (%)/F1 (%))*** |  |  | 1 (33.1/92.8/45.1) |  |  | 1 (65.9/59/63.8) |
Comparison of AUROC | ||||||
 Metabolite marker panel versus FIB-4**** | p < 0.001 | p < 0.001 | p < 0.001 | p < 0.001 | p < 0.001 | 0.01 |
 Metabolite marker panel versus APRI**** | p < 0.001 | p < 0.001 | p < 0.001 | p < 0.001 | p < 0.001 | p < 0.001 |
 Metabolite marker panel versus AST/ALT**** | p < 0.001 | p < 0.001 | p < 0.001 | p < 0.001 | p < 0.001 | p < 0.001 |