Correlations of clinical features, evoked potential data, and recovery ratio
| Recovery ratio | No. of patients | Mean (SD)* | p Value† |
|---|---|---|---|
| *Data are presented as percentages. †Two sample Student’s t test. | |||
| Total | 39 | 51.0 (29.4) | |
| Sex | |||
| Men | 27 | 49.4 (31.9) | 0.602 |
| Women | 12 | 54.8 (23.8) | |
| Age | |||
| ⩾55 years | 19 | 37.8 (24.9) | 0.005 |
| <55 years | 20 | 63.6 (28.4) | |
| Arm MEP | |||
| Normal | 3 | 77.7 (25.4) | 0.179 |
| Abnormal | 36 | 48.8 (28.9) | |
| Leg MEP | |||
| Normal | 18 | 49.2 (31.8) | 0.729 |
| Abnormal | 21 | 52.6 (28.0) | |
| Median SEP | |||
| Normal | 16 | 65.8 (26.9) | 0.007 |
| Abnormal | 23 | 40.7 (27.0) | |
| Tibial SEP | |||
| Normal | 19 | 53.9 (28.6) | 0.561 |
| Abnormal | 20 | 48.3 (30.7) | |