Higher levels of 2-DNA methylation (ZNF644, cg10471794) were associated with better survival, while, higher level of 13 DNA methylation was associated with worse survival (MGC16121, KIAA1026, FBXO11, BDP1, CCDC126, XPO7, STX2, IPO5, cg12094029) in patients with STAD. The gene discussed is XPO7; the disease is gastric adenocarcinoma.