| Grouping | n | Marked effect | Effective | Ineffective | Effective rate |
| Group A | 44 | 32 (72.73) | 10 (22.73) | 2 (4.55) | 42 (95.45) |
| Group B | 44 | 9 (20.45) | 21 (47.73) | 14 (31.82) | 30 (68.18) |
| X2 |
| - | - | - | 11.00 |
| p |
| - | - | - | < 0.001 |