| Time | Group I | Group II | P-value | ||
| No | % | No | % | ||
| 0 time | 15 | 30 | 25 | 50 | 0.036* |
| 15 min | 7 | 14 | 15 | 30 | 0.047* |
| 30 min | 3 | 6 | 7 | 14 | 0.125 |