Figure 1From: The association between polymorphisms in the MDR1 gene and risk of cancer: a systematic review and pooled analysis of 52 case–control studiesForest plot of cancer risk associated with the MDR1 3435C > T polymorphism (TT vs. CC, random effects). The squares and horizontal lines correspond to the study-specific OR and 95% CI. The area of the squares reflects the study-specific weight (inverse of the variance). The diamonds represent the pooled OR and 95% CI.Back to article page