The variables were: sex; having a previous stroke; hypertension; smoker; drinking; having a brain tumor; the level of white blood cell, red blood cell, hemoglobin, platelet, neutrophil percentage, lymphocyte, lymphocyte percentage, total bilirubin, gamma-glutamyl transferase, prealbumin, uric acid, prothrombin time and international normalized ratio (Table 3). The gene discussed is F2; the disease is hypertensive disorder.