While a TTC > 90 days after surgery is associated with worse OS among all tumor subtypes, we observed an increased risk of death among patients with HER2‐positive (HR = 1.59, 95% CI 1.15‐2.2) and triple negative (HR = 1.43, 95% CI 1.05‐1.95) tumors even when TTC was >60 days. The gene discussed is ERBB2; the disease is neoplasm.