Figure 1: Relative miRNA 208a expression in atrial fibrillation categories. The average relative expression of miRNA 208a in paroxysmal, persistent, long-standing persistent atrial fibrillation is shown. The error bars represent standard deviation, and the asterisk indicates a significant difference between the average miRNA 208a expression in persistent and long-standing persistent atrial fibrillation. Differences in age, sex, or BMI between the groups were not significant; comparison between one group and all other groups treated as a whole revealed no significant differences as well. There was also no significant correlation between age or BMI and miRNA 208a expression.