Angiotensin-converting enzyme and bradykinin gene polymorphisms and cough: A meta-analysis

Figure 2 Random effects odds ratio estimates with the corresponding 95% confidence interval of the ACE allele contrast for ACEI-related cough. The odds ratio (OR) estimate of each study is marked with a solid black square. The size of the square represents the weight that the corresponding study exerts in the meta-analysis. The confidence intervals of pooled estimates are displayed as a horizontal line through the diamond. The horizontal axis is plotted on a log scale. OR greater than 1 indicates increased risk of ACEI-induced cough.