Table 3.

[¹¹C] PiB Ratios Stratified by ApoE-Genotype

ApoE ε 4-Allele	0	1	2
n	9	10	5
Baseline: mean/SD	1.51/0.226	1.70/0.299	1.79/0.373
Follow-Up: mean/SD	1.57/0.280	1.87/0.371	2.09/0.111
Difference: mean/SD	0.05/0.115	0.17/0.122	0.31/0.273
Rate of Change: mean/SD	3%/7.7%	10%/7.8%	22%/27.1%
p value (Wilcoxon)	.327	.015	.043

[¹¹C] PiB, Pittsburgh Compound B; ApoE, apolipoprotein E.