Forest plots for meta-analysis of CD2AP, EPHA1, ARID5B , and CD33 variants in our six Mayo2 case-control series. ORs (boxes) and 95% CI (whiskers) are plotted for each population and shown on the right of each plot. Combined OR is the overall OR calculated by the meta-analysis using a random effects model. P-values are provided for the combined ORs and Breslow-Day tests of heterogeneity. I2 gives an estimate of between studies variance.