 - Newly diagnosed, drug-naive, or without any antihypertension treatment for at least 3 months, mild essential hypertension patients 140mmHg mean SiSBP 160mmHg or 90mmHg mean SiDBP 100mmHg with high or extreme high cardiovascular risk ahaving 3 or more than 3 risk factors andor target organ lesion andor diabetes mellitus. 