Forest plot of odds ratio (OR) and 95% confidence interval (CI) for each study of the association between the <i>−1131T>C</i> polymorphism and metabolic syndrome risk under dominant model (carriers vs. non-carriers) in meta-analysis.

<p>The squares and horizontal lines correspond to OR and 95% CI for each study, and the area of squares reflects study weight (inverse of the variance). The diamond represents the pooled OR and its 95% CI.</p>