| 25(OH)D | 25-hydroxyvitamin D |
| aOR | Adjusted Odds Ratio |
| BMI | Body Mass Index |
| CI | Confidence Interval |
| CRP | C-Reactive Protein |
| DN4 | Douleur Neuropathique 4 |
| ESR | Erythrocyte Sedimentation Rate |
| FDR | False Discovery Rate |
| GABA | Gamma-aminobutyric acid |
| HbA1c | Glycated Hemoglobin |
| IQR | Interquartile Range |
| LANSS | Leeds Assessment of Neuropathic Symptoms and Signs |
| S-LANSS | Self-report Leeds Assessment of Neuropathic Symptoms and Signs |
| SF-McGill | Short-Form McGill Pain Questionnaire |
| VDR | Vitamin D Receptor |