The level of IgM autoantibodies against Lp(a) was significantly higher in patients without severe atherosclerosis compared to patients with CAD, CVD, and LEAD, at 104 (80; 128) vs 94 (73; 115), 90 (71; 116), and 87 (70; 114) laboratory units (lab. Here, CD40LG is linked to atherosclerosis.