The percentage distribution of p16Ink4a immunohistochemical staining in the CaexPA group in reference to survival rate
| p16Ink4a expression in CaexPA | Positive, % | Borderline, % | No expression, % |
| Survival, years | |||
| 3 | 100 | 90.0 | 100 |
| 5 | 90.56 | 73.64 | 75 |
| 10 | 60.37 | 22.20 | 0.0 |
CaexPA, carcinoma ex pleomorphic adenoma.