Abstract
We studied the relationships between the occurrence of cardiovascular events (CVD) and the presence/absence of diabetes mellitus, blood pressure and the HbA1c levels in 13,052 patients with no history of cardiovascular disease among those included in the full analysis set of the OMEGA study, a large-scale prospective observational study investigating the relationships between the occurrence of CVD and blood pressure and/or other risk factors in hypertensive Japanese patients receiving antihypertensive therapy based on the angiotensin II receptor blocker (ARB) olmesartan. During the 36-month study period, the incidence of CVD (per 1,000 subject-years) was 9.83 in the diabetic group (3,155 patients) and 4.23 in the nondiabetic group (9,897 patients). For the prevention of CVD, our results suggest that it is advisable to control the blood pressure to <140/90 mmHg in hypertensive patients with no history of cardiovascular disease and further control the HbA1c level to <7.0 % with a blood pressure of <130/80 mmHg in those with diabetes mellitus.