According to age, tumor subtypes in the 3792 patients were classified as follows: luminal A (n = 86, 12.0%), luminal B (n = 420, 58.6%), HER2-enriched (n = 75, 10.4%), and TNBC (n = 136, 19.0%) in the young group and luminal A (n = 1080, 35.1%), luminal B (n = 1366, 44.4%), HER2-enriched (n = 316, 10.3%), and TNBC (n = 313, 10.2%) in the older group. This evidence concerns the gene ERBB2 and neoplasm.