Table 3.

APOE ɛ2/ɛ3/ɛ4 allele frequencies in DTD cohort and reference populations

Allele	n	Chromosomes tested	Allele frequency in DTD cohort	Reference allele frequencies in Caucasian controls [5]	Reference allele frequencies in Caucasians with AD [5]
ɛ2	2	40	5.0%	8.4%	3.9%
ɛ3	35	40	87.5%	77.9%	59.4%
ɛ4	3	40	7.5%	13.7%	36.7%