Results of evaluation of 157 patients suspected of chronic polyneuropathy, according to part 1 of the guideline
| Polyneuropathy with known cause (n=105) | Polyneuropathy cause disclosed by part 1 (n=11) | No neuropathy (n=32) | Signs and symptoms of neuropathy, not confirmed by electrophysiology (n=9) | ||
| Diabetes mellitus (n=60) | Diabetes mellitus (n=5) | ||||
| HIV (n=21) | Alcoholism (n=5) | ||||
| Alcoholism (n=11) | Renal failure (n=1) | ||||
| Drug induced (n=7) | |||||
| Renal failure (n=6) | |||||
| Patients with unnecessary investigations1-150 | n=69 | n=4 | n=10 | n=0 | |
| Patients with too few investigations | n=0 | n=0 | n=0 | n=6 | |
| Number of electrophysiological studies | n=73 | n=11 | n=29 | n=3 | |
| Number of patients with no electrophysiological studies | n=32 | n=0 | n=3 | n=6 | |
| Unnecessary electrophysiological studies | n=69 | n=3 | n=10 | n=0 | |
| Results of electrophysiologic tests | Demyelinating (n=6) | Axonal, sensorimotor (n=9) | No neuropathy (n=29) | No neuropathy (n=3) | |
| Axonal, sensorimotor (n=53) | Axonal, pure sensory (n=2) | ||||
| Axonal, pure sensory (n=9) | |||||
| Axonal, pure motor (n=5) | |||||
↵1-150 Some patients have more than one unnecessary investigation.