Subgroup analysis was also stratified by cancer types, in different types of cancer, MUC1 rs4072037 polymorphism was significantly associated with an decreased risk of gastric cancer in all genetic models (G vs A: OR = 0.68, 95%CI: 0.60–0.77, p<0.01; GA vs AA: OR = 0.59, 95%CI:0.53–0.66, p<0.01; GG vs AA: OR = 0.52, 95%CI: 0.44–0.66, p<0.01; AG+AA vs GG: OR = 0.58, 95%CI: 0.53–0.64, p<0.01; GG vs AG+AA: OR = 0.65, 95%CI: 0.52–0.80, p<0.01). This evidence concerns the gene MUC1 and cancer.