The median PON1 levels, were similar across Q192R genotypes for controls (QQ = 82.63, QR = 82.59 and RR = 83.04 μmol/min/ml) and CAD patients (QQ = 76.21, QR = 71.52 and RR = 70.16 μmol/min/ml). Here, PON1 is linked to coronary artery disorder.