MMP9 and metastatic malignant neoplasm in the lymph nodes: In addition, high MMP-9 expression was significantly associated with lymph node metastasis (OR = 2.98, 95% CI = 1.27 – 7.03, P < 0.05), myometrial invasion (OR = 2.42, 95% CI = 1.42 – 4.12, P < 0.05) and vascular invasion (OR = 2.67, 95% CI = 1.27 – 5.60, P < 0.05) of EC in Asians.