Table 4.

Demographic characteristics of the AD cases used for immunohistochemical analysis

	Typical AD (n = 10)	Atypical AD (n = 9)	p-value
Male, n	2	7	< .05
Age at death	81 (± 10)	63 (± 3)	< .01
Disease duration	5 (± 3)	4 (± 2)	.78
Brain weight (grams)	1043 (± 146)	1117 (± 161)	.32
PMI (h:min)	6:19 (± 1:48)	5:51 (± 1:33)	.66
NFT stage [7] n per stage 4/5/6	2/5/3	0/4/5	.46
Amyloid stage [7] n per stage O/A/B/C	0/0/10	0/1/8	.47
ApoE genotype n per category 32/33/42/43/44	1/2/0/6/1	0/3/1/3/2	.48

Data in mean (± SD). Age at death and disease duration in years. Mann-Whitney U test for continuous data. Fisher’s exact test for categorical data

AD Alzheimer’s disease, NFT neurofibrillary tangle, PMI post-mortem interval