PSCA and gastric neoplasm: For the PSCA gene rs2976392 G > A, we also found significantly increased associations in the subgroups of ≤59 years old (OR = 1.53, 95% CI = 1.10–2.13, P=0.012), >59 years old (OR = 1.48, 95% CI = 1.05–2.08, P=0.024), males (OR = 1.56, 95% CI = 1.18–2.06, P=0.002), never and ever smoking (OR = 1.52, 95% CI = 1.10–2.10, P=0.012 and OR = 1.56, 95% CI = 1.10–2.23, P=0.013), never and ever drinking (OR = 1.43, 95% CI = 1.09–1.89, P=0.010 and OR = 1.81, 95% CI = 1.13–2.8823, P=0.013), and non-cardia tumor site (OR = 1.55, 95% CI = 1.20–2.01, P=0.001).