ERBB2 and neoplasm: In univariate analysis (Table 3), pathological grade 2–3 (p = 1.18 × 10−14), positive axillary lymph node status (p = 4.14 × 10−31), pT2-T3 tumor size (p = 9.81 × 10−21), and HER2+ and TN subtypes (p = 3.53 × 10−23) were associated with shorter OS.