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. 2011 Aug 23;77(8):713–721. doi: 10.1212/WNL.0b013e31822b0004

Table 1.

Demographics, global cognitive status, and dementia severity of young-old and very-old HC and AD groups

graphic file with name znl03211-9107-t01.jpg

Abbreviations: AD = Alzheimer disease; CDR = Clinical Dementia Rating; HC = healthy control; MMSE = Mini-Mental State Examination.

a

Significant difference (p < 0.001) between the very-old HC group and the young-old HC group.

b

Significant difference (p < 0.001) between the very-old AD group and the young-old AD group.

c

Significant difference (p < 0.001) between the young-old AD group and the 2 HC groups.

d

Significant difference (p < 0.001) between the very-old AD group and the 2 HC groups.