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. Author manuscript; available in PMC: 2013 Apr 11.
Published in final edited form as: J Neurol Neurosurg Psychiatry. 2012 Jan 30;83(4):424–429. doi: 10.1136/jnnp-2011-301413

Table 3.

Associations between APOE ε4 and LB, AD and vascular pathology, and brain weight

APOE ε4 allele count P-value

Outcome measure 0 “ε4” alleles (N=348) 1 “ε4” allele (N=331) 2 “ε4” alleles (N=78) No adjustment Adjusting for age and sex
LB count
Middle frontal (>0) 94 (27%) 105 (32%) 21 (27%) 0.84 0.85
Superior temporal (>0) 113 (33%) 124 (37%) 24 (31%) 0.47 0.40
Inferior parietal (>0) 86 (25%) 88 (27%) 20 (26%) 0.17 0.19
Cingulate gyrus (>0) 107 (31%) 123 (37%) 25 (32%) 0.87 0.75

LBD score (≥ 2) 110 (32%) 121 (37%) 25 (32%) 0.46 0.44

NFT count
Middle frontal 1 (0, 0, 6, 40) 2 (0, 0, 6, 46) 6 (0, 2, 11, 27) 0.003 0.001
Superior temporal 3 (0, 0, 10, 47) 6 (0, 2, 12, 37) 10 (0, 4, 16, 35) <0.001 <0.001
Inferior parietal 2 (0, 0, 8, 57) 4 (0, 1, 9, 60) 8 (0, 3, 13, 33) 0.001 <0.001
Hippocampal CA1 5 (0, 2, 12, 38) 10 (0, 3, 18, 55) 12 (0, 7, 18, 55) <0.001 <0.001

Braak stage (≥ 5) 192 (55%) 241 (73%) 72 (92%) <0.001 <0.001

SP count
Middle frontal (<50) 99 (28%) 45 (14%) 4 (5%) <0.001 <0.001
Superior temporal (<50) 135 (39%) 60 (18%) 5 (6%) <0.001 <0.001
Inferior parietal (<50) 103 (30%) 41 (13%) 3 (4%) <0.001 <0.001
Motor cortex 16 (0, 5, 27, 50) 20 (0, 11, 30, 50) 25 (0, 13, 43, 50) <0.001 <0.001
Visual cortex 22 (0, 7, 35, 50) 32 (0, 18, 50, 50) 48 (1, 24, 50, 50) <0.001 <0.001

Vascular disease 104 (30%) 90 (27%) 16 (21%) 0.11 0.17

Brain weight 1100 (684, 1000, 1240, 1630) 1080 (440, 960, 1160, 1540) 1050 (680, 928, 1195, 1540) <0.001 0.002

The sample median (minimum, 25th percentile, 75th percentile, maximum) is given for numerical variables. P-values result from negative binomial regression models (LB counts and NFT counts), parametric regression survival models considering counts of 50 censored (SP counts), logistic regression models (LBD score ≥ 2, vascular disease, Braak stage ≥ 5), and linear regression models (brain weight), under an additive model.

P-values ≤ 0.0056 are considered statistically significant after a single-step minP adjustment for multiple testing. Numbers account for genotype failure. LB = Lewy body, LBD = Lewy body disease, NFT = neurofibrillary tangle, SP = senile plaque.