DNA cytometry findings in breast carcinomas with equivocal (2+) HER2 immunostaining (N=101)
| Parameter | N | % |
| SSI | ||
| Genomically stable (SSI <8.8%) | 33 | 32.7 |
| Genomically unstable (SSI >8.8%) | 68 | 67.3 |
| DNA ploidy category | ||
| Diploid | 35 | 34.7 |
| Tetraploid | 31 | 30.7 |
| Aneuploid | 35 | 34.7 |
| 5c Exceeding rate | ||
| 5c Exceeding rate low (<5%) | 49 | 48.5 |
| 5c Exceeding rate high (>5%) | 52 | 51.5 |
SSI, stem line scatter index.