Is there an association between Helicobacter pylori infection and irritable bowel syndrome? A meta-analysis

Figure 1 Meta-analysis of observational studies flowchart showing the studies identified during the literature search and abstraction process. H. pylori: Helicobacter pylori; IBS: Irritable bowel syndrome.

Figure 2 Forest plot showing the odds ratios and 95% confidence intervals of studies on the likelihood of Helicobacter pylori infection in patients with irritable bowel syndrome.

Figure 3 Funnel plot (with pseudo 95% confidence intervals) to assess publication bias. Egger test for publication bias = 1.28, 95% confidence interval: 0.80-3.36, P = 0.189.