Table 7. Risk Categories for Women With Node-Negative Breast Cancer
| Low Risk (Has All Listed Factors) | Intermediate Risk (Risk Classified Between the Other Two Categories) | High Risk (Has at Least One Listed Factor) | |
| ER = estrogen receptor; PR = progesterone receptor | |||
| Tumor size | = 1 cm | 1–2 cm | >2 cm |
| ER or PR status | positive | positive | negative |
| Tumor grade | grade 1 | grade 1–2 | grade 2–3 |
