此样本中，有350人已确诊患有艾滋海默症或血管性痴呆症，另外114人有罹患痴呆症的可能。

Of the sample, 350 had been diagnosed with Alzheimer's disease or vascular dementia and a further 114 had possible dementia.

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痴呆症不是一个单一的疾病，而是许多疾病的集合或者受其影响，这包括帕金森氏症(Parkinson ' s disease)，血管性痴呆(vascular dementia)和阿尔茨海默病(Alzheimer ' s disease)(有70%的痴呆症由此引起)。

Dementia is not a single illness but a collection or consequence of many, including Parkinson's disease, vascular dementia and Alzheimer's disease (which accounts for some 70% of all dementia cases).

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