| Grade | p53 | |||||
| Negative | Weak | Moderate | Strong | Total | ||
| Low grade | N | 5 | 3 | 7 | 3 | 18 |
| % | 27.78 | 16.67 | 38.89 | 16.67 | 100.00 | |
| High grade | N | 0 | 0 | 2 | 5 | 7 |
| % | 0.00 | 0.00 | 28.57 | 71.43 | 100.00 | |
| Total | N | 5 | 3 | 9 | 8 | 25 |
| % | 20.00 | 12.00 | 36.00 | 32.00 | 100.00 | |
| Chi-square | X2 | 7.983 | ||||
| P-value | 0.046 | |||||