| Xerostomia | Quality of life | n | p | |
| High | Low | |||
| Xerostomia (+) | 3 (25%) | 21 (75%) | 28 | 0.028* |
| Xerostomia (−) | 12 (80%) | 3 (20%) | 15 | |
| Total | 15 | 24 | 43 | |