In contrast, genetically predicted expression levels of SLC25A15 and UQCC1 were not associated with AF risk in atrial appendage tissue (OR 0.95, 95% CI 0.91–1.00, p = 0.058, and OR 1.02, 95% CI 0.90-1.14, p = 0.798, respectively) (Figure 5). Here, UQCC1 is linked to atrial fibrillation.