In contrast, ARID1A expression loss did not significantly related to the poor outcome of GC patients in non-Asians (HR = 1.50; 95% CI = 0.53–4.20, P = 0.444), or high proportion of proximal stomach (Upper third part of stomach >30%, HR = 1.20, 95% CI = 0.40–3.61, P = 0.750) subgroup, or EBV (+) ≤ 5% subgroup (HR = 2.20, 95% CI = 0.93–5.22, P = 0.073). The gene discussed is ARID1A; the disease is gastric cancer.