Percentage (and number) in each group reporting symptomatic improvement
| A | B | C | D | E | |
| Median motor nerve latency (mean (SD)) | |||||
| Before treatment | 4.8 (0.21) | 4.5 (0.24) | 4.3 (0.32) | 4.7 (0.37) | 4.6 (0.28) |
| After treatment | 4.9 (0.18) | 4.4 (0.23) | 4.3 (0.29) | 4.6 (0.26) | 4.6 (0.31) |
| Treatment1-150 | 25 mg HC | 100 mg HC | Controls | 20 mg triam. | 100 mg HC |
| At 6 weeks | 66 (21) | 63 (20) | 5 (1) | 72 (13) | 67 (14) |
| At 6 months1-151 | 66 (14) | 50 (10) | — | 61 (8) | 50 (7) |