Methods WCH and sustained hypertension (SH) were classified by clinical and 24 hours ambulatory blood pressure.The structure and function of heart were measured by echocardiography.

• 方法通过诊室血压测量和24h动态血压监测将患者分为白大衣高血压组和持续性高血压组,采用超声心动图测量比较每组患者的心脏结构、功能。