Fig. 5From: Association between methylenetetrahydrofolate reductase gene rs1801131 A/C polymorphism and urinary tumors’ susceptibilityForest plot of bladder cancer risk associated with the MTHFR rs1801131 polymorphism (C-allele vs. A-allele) by ethnicity subgroup. 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