Objective To study the effects of Alzheimer's disease(AD),Cerebrovascular Disorders (CVD) and other encephalopathy on memory of elderly people over 60 years old.Methods 198 AD patients,129 CVD patients,39 other encephalopathy patients,and 28 normal persons were examined with Wechsler Memory Scale revised in China(WMS-RC).Results The average scores of MQ of the AD group,the CVD group,the other encephalopathy group and the normal group were 50.783±22.370,60.96±26.11,70.47±22.93 and 105.39±10.45,respectively,(F=49.046,P＜0.01).The normal group got significsntly higher scores in almost all subscales than other groups(P＜0.05),and the AD group got the lowest scores in almost all subcales.Conclusion There was significant memory damage in AD and CVD patients,and the memory damage in AD patients was more severe than that in CVD patients.

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