# Figure Index - 2026 Neuropathy Model (2026-01-03)

Model: ExtraTrees (age + sensory absence + median/ulnar motor metrics + derived ratio/diff)
Dataset: 408 labeled exams (227 hereditary, 181 inflammatory)

See also: `knowledge_base/presentations/FIGURE_LEGENDS.md` for narrative guidance.

| ID | File | Description | Key numbers |
| --- | --- | --- | --- |
| F1 | `knowledge_base/presentations/2026_neuropathy_class_distribution.png` | Class balance | 227 hereditary vs 181 inflammatory |
| F2 | `knowledge_base/presentations/2026_neuropathy_roc_curve.png` | ROC (stratified CV) | AUROC 0.890 |
| F3 | `knowledge_base/presentations/2026_neuropathy_precision_recall.png` | Precision-Recall (stratified CV) | AP 0.846 |
| F4 | `knowledge_base/presentations/2026_neuropathy_confusion_matrix.png` | Confusion matrix (stratified CV) | TN 193, FP 34, FN 41, TP 140 |
| F5 | `knowledge_base/presentations/2026_neuropathy_feature_importance.png` | Feature importance | Age + median/ulnar conduction metrics dominate |
| F6 | `knowledge_base/presentations/2026_neuropathy_groupcv_by_center.png` | Leave-one-center-out | HCFMRP_USP 0.661/0.766; UFU 0.696/0.839; USP_SP 0.589/0.732; legacy_hcrp 0.688/0.749 |

Summary PDF:
- `knowledge_base/presentations/2026_neuropathy_ml_summary.pdf`