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Diagnostic accuracy and agreement of DPN screening methods.
| Test method | Sensitivity | Specificity | PPV | NPV | Cohen’s κ of agreement |
|---|---|---|---|---|---|
| Numbness | 74% | 49% | 54% | 69% | 0.22 |
| Monofilament | 86% | 59% | 63% | 83% | 0.43 |
| Sibbald | 98% | 47% | 54% | 94% | 0.19 |
The accuracy and degree of agreement between self-reported numbness of the lower limbs, the monofilament test and Sibbald 60-s tool, compared to the NC-stat DPNCheck. PPV = positive predictive value, NPV = negative predictive value.
