Similar to patients without SBP, AF apoA-II did not correlate with serum cholesterol or triglyceride levels but with AF total cholesterol (rs = 0.465, P < 0.001), AF HDL cholesterol (rs = 0.331, P = 0.015), and AF LDL cholesterol (rs = 0.444, P < 0.001). This evidence concerns the gene APOA2 and atrial fibrillation.