SOX2-OT and metastatic malignant neoplasm in the lymph nodes: Through comparing the incidence of distance metastasis and lymph node metastasis between high and low SOX2OT expression group by random model, we found that patients with increased SOX2OT levels failed to show incline to distance metastasis (HR: 3.30, 95% CI: 0.74–14.61, P = 0.12) and lymph node metastasis (HR: 1.29, 95% CI: 0.87–1.91, P = 0.21), respectively.