Major Molecular Subtypes of Breast Cancer (9)
| Molecular subtype | Proportion of breast cancer | 4-y estimated survival |
|---|---|---|
| HR-positive/HER2-negative | 66.6% | 92.5% |
| HR-positive/HER2-positive | 9.7% | 90.3% |
| HR-negative/HER2-positive | 4.3% | 82.7% |
| Triple-negative | 10.8% | 77.0% |
HR = hormone receptor.