The morbidity of CD in old patients with hemodialysis is related to high diastolic pressure,unbalanced Ca,P metabolism. Age and prolonged hemodialysis time don?t increase CD morbidity.

• 老年血透患者CD发病率与舒张压升高、钙磷代谢紊乱有关，老年血透患者年龄增长和血透时间的延长不增加CD的发病率。