| Training cohort AUROC (95% CI) | Validation cohort AUROC (95% CI) | |
| NAS 0–2 vs NAS 3–8 | 0.833 (0.700 to 0.966) | 0.829 (0.737 to 0.921) |
| NAS 0–3 vs NAS 4–8 | 0.854 (0.763 to 0.945) | 0.784 (0.668 to 0.900) |
| NAS 0–4 vs NAS 5–8 | 0.865 (0.772 to 0.957) | 0.723 (0.505 to 0.941) |