GPX1 and coronary artery disorder: Multivariate logistic regression analysis, after eliminating the influences of confounding factors for CAD shows that the positive family history of CAD and erythrocyte GPX-1 activity and GPX Pro198Leu (CT) genotype had significantly high Odds ratio (Table 2) indicating that GPX-1 and GPX Pro198Leu (CT) genotype appear to important markers of CAD (Table 2).