| VAS 48 hr | E | Group | Control group | |
| N | % | N | % | |
| 0 - 10 | 8 | 32.0 | 1 | 4.0 |
| 20 - 30 | 10 | 40.0 | 5 | 20.0 |
| 40 - 50 | 6 | 24.0 | 4 | 16.0 |
| 60 - 70 | 1 | 4.0 | 7 | 28.0 |
| 80 - 90 | - | - | 8 | 32.0 |
| Total | 25 | 100.0 | 25 | 100.0 |
| Mean | 23.6 | 55.6 | ||
| DS | 16.0 | 25.0 | ||
| Min | 0 | 0 | ||
| Max | 60 | 90 | ||
| Mann Whitney test | U’ = 527.0, P < 0.0001 | |||