| Stage | Grade (Invasive Carcinoma) | |||||
| Grade I | Grade II | Grade III | Grade IV | Total | ||
| pT1 | N | 8 | 59 | 2 | 0 | 69 |
| % | 4.94 | 36.42 | 1.23 | 0.00 | 42.59 | |
| pT2 | N | 0 | 44 | 16 | 2 | 62 |
| % | 0.00 | 27.16 | 9.88 | 1.23 | 38.27 | |
| pT3 | N | 0 | 8 | 18 | 0 | 26 |
| % | 0.00 | 4.94 | 11.11 | 0.00 | 16.05 | |
| pT4 | N | 0 | 0 | 5 | 0 | 5 |
| % | 0.00 | 0.00 | 3.09 | 0.00 | 3.09 | |
| Total | N | 8 | 111 | 41 | 2 | 162 |
| % | 4.94 | 68.52 | 25.31 | 1.23 | 100.00 | |
| Chi-square | X2 | 75.838 | ||||
| P-value | 0.000 | |||||