Figure 3.

Receiver operating characteristic curves validating the diagnostic potential of nerve conduction methods in the sural nerve to identify diabetic polyneuropathy. (a,b) Receiver operating characteristic curves of amplitudes of sensory nerve action potential obtained by (a) the point‐of‐care device and (b) the standard electromyography system. (c,d) Receiver operating characteristic curves of sensory nerve conduction velocities obtained by the (c) point‐of‐care device and (d) electromyography system. *An optimal threshold for diagnosis.