PWVs were examined by special apparatus made by Colin Corporation and five PWV indexes: HB(heart to branchial), HC(heart to carotid),LBA(branchial t oankle on the left), RBA(branchial to ankle on the right) and AI(augmentation index) were included.

• PWV检查包括5个项目：心脏-肱动脉PWV(HB)、心脏-颈总动脉PWV(HC)、左侧肱动脉-踝动脉PWV(LBA)、右侧肱动脉-踝动脉PWV(RBA)四个PWV以及反射波增值指数(AI)。