Fig. 3
From: Association of Helicobacter pylori babA2 gene and gastric cancer risk: a meta-analysis
Random-effects meta-analysis forest plot of the odds ratio of gastric cancer according to H.pylori infection with babA2 with respect to without babA2. The studies are divided into Asian and South American according to participants ethnicities and sorted by publication year. The solid squares are centered on the odds ratio (OR) point estimate from each study, and the horizontal line through each square indicates the 95% confidence interval (CI) for the study. The area of each square represents the magnitude of association, and the horizontal tips of the diamond represent the 95% CI