| Levels | HENE + Clindamycin | Clindamycin | p | ||
| N | % | n | % | ||
| Very good | 0 | 0 | 0 | 0 | >0.05 (χ2 = 0.669) |
| Good | 4 | 12.9 | 2 | 6.7 | |
| Moderate | 27 | 87.1 | 28 | 93.3 | |
| Poor | 0 | 0 | 0 | 0 | |
| Total | 31 | 100 | 30 | 100 | |