Demographics/clinical characteristics and MRN/EMG findings
| Variable | Value | Range/Percentage |
|---|---|---|
| Subjects | 64 | |
| Age (yr) | 57 | 20–84 |
| Sex (male) | 33 | 51.6% |
| Symptom duration (mo) | 26 | 1–312 |
| Diabetes | 12 | 18.8% |
| Prior surgery | 9 | 14.1% |
| Weakness | 29 | 45.3% |
| Numbness | 31 | 48.4% |
| Leg pain | 48 | 75.0% |
| Back pain | 28 | 43.8% |
| Tingling | 23 | 35.9% |
| MRN intraneural T2 signal abnormality (grade I or II) | 28 | 43.8% |
| MRN evidence of muscular denervation | 8 | 12.5% |
| EMG findings of active radiculopathy | 20 | 31.3% |