Figure 3. Performance of Ki67 (as a continuous variable) to predict Luminal A or ROR-low disease within HR+/HER2- node-negative disease.

(A) Predicting Luminal A disease (vs. others); (B) Predicting ROR-low disease (vs. others) within tumor sizes ≤ 2 cm; (C) Predicting ROR-low disease (vs. others) within tumor sizes >2 cm tumors. AUC, area under the curve.