In a multiple regression model, age and systolic blood pressure measured at home were positively correlated with AIx.

• 将增强指数作为因变量 ,年龄、身高、心率、家访时的收缩压及舒张压作为自变量进行多元回归分析显示 ,受试者年龄及收缩压与增强指数呈显著的正相关。