CD68 and atrial fibrillation: The proteins with the most significant positive and negative effects on AF were RAB1A (OR:3.09, 95%CI:2.40–3.98, FDR = 3.42 × 10-15) and CD68 (OR:0.59, 95%CI:0.45–0.76, FDR = 1.11 × 10-2), respectively.