Methods 66 non dipper hypertensives were taken hypotensive agents at 7:00 AM for 3 weeks,afterwards at 4:00PM or at 7:00 AM meanwhile.72 dipper hypertensives were as controls.

• 方法用动态血压监测法选取非勺型高血压病人66例,早上7时服药,3周后改为下午4时服药或加早上7时服药,另选勺型高血压病人72例作对照。