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Diagnostic performance of corneal nerve fibre parameters for the diagnosis of painful diabetic neuropathy
| CCM parameters | AUC | p value | Optimal threshold | Sensitivity | Specificity |
|---|---|---|---|---|---|
| CNFD (no./mm2) | 0.78 | <0.0001 | 23.69 | 0.73 | 0.72 |
| CNBD (no./mm2) | 0.75 | <0.0001 | 51.04 | 0.66 | 0.66 |
| CNFL (mm/mm2) | 0.74 | <0.0001 | 21.48 | 0.66 | 0.65 |
Abbreviations: AUC, area under the curve; CCM, corneal confocal microscopy; CNBD, corneal nerve branch density; CNFD, corneal nerve fibre density; CNFL, corneal nerve fibre length.
