Group I N* = 24 | Mean Follow Up | Group II N* = 22 | Mean Follow Up | ||||
Min | max | Mean ± SD | Min | max | Mean ± SD | ||
F-up at 6 ms | 35 | 70 | 53.3 ± SD 9.3 |
| 22 | 65 | 95 ± SD 7.4 |
F-up at 12 ms | 55 | 90 | 71.4 ± SD 10.1 | 22 | 75 | 100 ± SD 7.2 | |
F-up at 24 ms | 60 | 100 | 82.9 ± SD 10.5 | 22 | 75 | 100 ± SD 8.2 |