Using MACE after PCI as the dependent variable and age, BMI, CHD risk factors (hypertension, diabetes, smoking), vascular lesions ≥ 3, frame length, bracket number, levels of platelet activity indicators after PCI and CYP2C19 metabolizers (IM+PM and EM) as independent variables, we analyzed whether these relevant parameters influence the occurrence of MACE. This evidence concerns the gene CYP2C19 and hypertensive disorder.