The levels of IgM anti-ApoA-I251–262 were significantly lower in CAD patients compared to HCs with 30%~70% stenosis (by 1.31-fold; p = 0.002) and those with >70% stenosis (by 1.46-fold; p = 0.0002) (Figure 3C, left panel). Here, APOA1 is linked to coronary artery disorder.