Fig. 4From: Association between methylenetetrahydrofolate reductase gene rs1801131 A/C polymorphism and urinary tumors’ susceptibilityForest plot of whole urinary cancers’ risk associated with the MTHFR rs1801131 polymorphism (CC + CA vs. AA). The squares and horizontal lines correspond to the study-specific OR and 95% CI. The area of the squares reflects the weight (inverse of the variance). The diamond represents the summary OR and 95% CIBack to article page