| Characteristics | The observation group | The control group | P value |
| (n = 28) | (n = 28) | ||
| Completely satisfied | 15 | 6 | 0.024 |
| Satisfied | 10 | 17 |
|
| Generally satisfied | 3 | 5 |
|
| Unsatisfied | 0 | 0 |
|