MMP3 and coronary artery disorder: MMP3 -1612 5A/6A was significantly linked to CAD under the four genetic models (dominant genetic model: P=0.04/OR=2.13; recessive genetic model: P=0.01/OR=1.91; over-dominant genetic model: P=0.007/OR=0.07; allele model: P= 0.005/OR=1.17) (Table 3).