ERBB2 and neoplasm: Women who were younger at the time of BC diagnosis (≤50 years) showed significantly lower TILs on metastasis than older patients (> 50 years) both in the overall population (p = 0.002) and when each tumor subtype was considered separately (p = 0.037 and p = 0.010 and for TN and HER2+ patients, respectively).