To investigate the association of NDUFS1 with clinicopathological features of GC, 162 GC patients with low NDUFS1 expression (− and +) were classified as the NDUFS1-low expression group, and 92 GC patients with high NDUFS1 expression (++ and +++) were classified as the NDUFS1-high expression group. The gene discussed is NDUFS1; the disease is gastric cancer.