Finally, we analyzed the association between H19 and lymph node metastasis, and the result elaborated that lymph node metastasis occurred with the expression levels of H19 (OR = 2.04, 95% CI = 1.19–3.48, P = 0.009, random-effect) (Figure 2(c)). This evidence concerns the gene H19 and metastatic malignant neoplasm in the lymph nodes.