However, there were no significant differences in gender, age, smoking, drinking, history of diseases (hypertension, diabetes, coronary heart disease), values of platelets, prothrombin time (PT), activated partial thromboplastin time (APTT), serum creatinine, left ventricular end diastolic dimension (LVEDD) and left ventricular ejection fraction (LVEF) between the two groups. The gene discussed is F2; the disease is hypertensive disorder.