As revealed in subgroup analysis, the incidence of lymph node metastasis in Chinese cancer patients had significance associated with MALAT-1 high expression (OR: 1.58, 95% CI: 1.01–2.46), while cancer patients in Japan show no significant result (OR: 1.52, 95% CI: 0.46–5.05). The gene discussed is MALAT1; the disease is metastatic malignant neoplasm in the lymph nodes.