尽管取得了进展,许多高血压患者的血压仍得不到控制。了解高血压未能控制的患者的特征,可能有助于改善血压控制。入选国家健康和营养检查调查中成人高血压患者13375例,研究者将患者按1988-1994,1999-2004和2005-2008年3个时间段进行分类。未控制高血压定义为收缩压≥140mmHg或 Despite the progress made, blood pressure in many hypertensive patients remains uncontrolled. Understanding the characteristics of patients with uncontrolled hypertension may help improve blood pressure control. In the National Health and Nutrition Examination Survey, 13375 adult hypertensive patients were enrolled in the study. Patients were classified according to the three time periods 1988-1994, 1999-2004 and 2005-2008. Uncontrolled hypertension was defined as systolic BP ≥140 mmHg or