Figure 2From: Quality of vitamin K antagonist control and outcomes in atrial fibrillation patients: a meta-analysis and meta-regressionResults of random-effects meta-analysis of the proportion of thromboembolic events that occurred when INRs were below 2.0. The squares represent individual studies, and the size of the square represents the weight given to each study in the meta-analysis. Error bars represent 95% confidence intervals. The diamond represents the combined results. List of studies shows name of first author and year of publication. CI = Confidence Interval.Back to article page