MKI67 and metastatic malignant neoplasm in the lymph nodes: Results indicated that the higher expression was associated with lymph node metastasis (p < 0.001), high tumor stage (p < 0.05), high risk of BC recurrence after surgery (p < 0.001), and non-luminal molecular type (p < 0.05), but was not associated with age, tumor diameter, and high expression of Ki-67 correlation (Table 1).