Methods:UAER was determined by radioimmunoassay, cold pressor test were performed and 24h ABP profiles were recorded in 56 borderline hypertensives and 30 normoten sives.

• 方法：对56例临界高血压患者及30例血压正常对照者进行动态血压监测、冷加压试验及尿白蛋白排泄率的测定。