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Figure 3: Forest plots of odds ratios with 95% confidence interval for X  ray repair cross  complementing group 1 polymorphisms and risk of non  carcinogenic disease (right) recessive model of Arg194Trp (Trp/Trp vs. Arg/Arg), (middle) dominant model (Trp/Trp vs. Arg/Arg+ Arg/Trp) and (left) additive model (Trp/Trp + Arg/Trp vs. Arg/Arg); first row is a subgroup analysis in Caucasian population under an fixed  effects (FEs) model (a  c); second row is a subgroup analysis in Asian population under an FEs model (d  f); third row is a subgroup analysis as other population under an FEs model (g and i) and randomeffects 
