Table 3.

CERAD and Braak scores.

	CERAD age-adjusted plaque score				Braak neurofibrillary tangle score
Group	0	A	B	C	I	II	III	IV	V	VI
CN	6	1	0	0	0	3	1	3	0	0
ASYMAD	0	0	6	0	0	1	2	3	0	0
CI	0	0	6	0	0	0	1	3	2	0

Number of individuals per group with each plaque or NFT score. The CERAD scores represent: 0 = no neuritic plaques A = sparse neuritic plaques, B = moderate neuritic plaques, C = frequent neuritic plaques. Braak score is determined as per Braak and Braak (1991). Low Braak stages (1–II) have NFTs in the entorhinal cortex (I) and hippocampus (II), mid Braak stages (III–IV) have NFTs extending to the neocortical association areas, and high Braak stages (IV–V) have NFTs extending to the parastriate (V) and striate (VI) cortices.