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. Author manuscript; available in PMC: 2011 Sep 1.
Published in final edited form as: Dis Mon. 2010 Sep;56(9):484–546. doi: 10.1016/j.disamonth.2010.06.001

Table 3.

CERAD Criteria for AD.

Plaque frequency
Age None Sparse Moderate Frequent
<50 0 C C C
50–75 0 B C C
>75 0 A B C

0 = no evidence of AD; A = uncertain; B = suggestive of AD; C = indicative of AD

“Definite AD” = C plus clinical dementia

“Probable AD” = B plus clinical dementia

“Possible AD” = A plus clinical dementia or, B or C and no dementia