| Change | N | % | P value | |
| Week 0 to Week 4 | Improved | 2 | 7.1% | 1 |
| Unchanged | 24 | 85.7% | ||
| Aggravated | 2 | 7.1% | ||
| Week 0 to Week 8 | Improved | 3 | 11.1% | 0.625 |
| Unchanged | 23 | 85.2% | ||
| Aggravated | 1 | 3.7% |