Kin17 expression level was significantly associated with tumor grade (p = 0.049, Table 2), luminal B subtype (ER+PR+HER2+, p = 0.016) and Ki-67 expression (p = 0.046), but there were no significant association with age, tumor size, tumor stage, estrogen receptor (ER) status, HER2 status or VEGF expression by univariate analysis (Table 2). This evidence concerns the gene ESR1 and neoplasm.