| CARTs | Cardiovascular autonomic reflex tests |
| LEPs | Laser-evoked potentials |
| DSPN | Distal symmetrical polyneuropathy |
| CAN | Cardiovagal autonomic neuropathy |
| LFN | Large-fiber neuropathy |
| SFN | Small-fiber neuropathy |
| MNSI | Michigan Neuropathy Screening Instrument |
| DN4 | Douleur Neuropathique 4 questionnaires |
| T2DM | Type 2 diabetes mellitus |
| HbA1c | Glycated hemoglobin |
| DB | Deep breathing |
| LS | Lying to standing |
| VM | Valsalva maneuver |
| IENFd | Intraepidermal nerve fiber density |
| IGT | Impaired glucose tolerance |
| CI | Confidence interval |