Abstract:Objective: To investigate the association between rs2275913 site polymorphism of IL-17 gene and the risk of gastric cancer. Methods: The case-control studies on relationship between the IL-17 rs2275913 G>A polymorphism and gastric cancer susceptibility were collected by searching several national and international databases. After literature screening, data extraction and quality assessment, Meta-analysis was performed by STATA 12.1 software. Results: Ten case-control studies were finally included, with 4 371 patients in case group and 5 345 subjects in control group. Meta-analysis results showed that among the rs2275913 site polymorphisms of IL-17 gene, the risk of gastric cancer was increased under allele-contrast model (A vs. G) (OR=1.22, 95% CI=1.10–1.37) and additive model (AA vs. GG) (OR=1.58, 95% CI=1.23–2.04), and was decreased under dominant model (AG+GG vs. AA) (OR=0.63, 95% CI=0.48–0.84) and recessive model (GG vs. AG+AA) (OR=0.86, 95% CI=0.78–0.94), but had no obvious change under codominant model (AG vs. AA+GG) (OR=0.91, 95% CI=0.78–1.07). Conclusion: IL-17 rs2275913 polymorphism is closely related to gastric cancer susceptibility.