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. Author manuscript; available in PMC: 2014 Mar 1.
Published in final edited form as: Am J Med Genet B Neuropsychiatr Genet. 2013 Jan 25;0(2):10.1002/ajmg.b.32133. doi: 10.1002/ajmg.b.32133

TABLE I.

Sample Characteristics

Alzheimer’s Disease Status
Affected Unaffected Unknown Total
Subjects 541 659 123 1323
Female 333 (61.6%) 327 (49.6%) 60 (48.8%) 720 (54.5%)
Age info 479 (88.5%) 502 (76.2%) N/A 981 (74.1%)
Age, yrs * 71.4 (8.0) 68.7 (15.3) N/A 70.0 (12.3)
Autopsies 238 8 0 246
> 90% genotyped 289 (53.4%) 207 (31.4%) 0 496 (37.5%)
Genotypes missing 168 (31.3%) 386 (58.6%) 123 (100%) 677 (51.2%)
APOE genotyped 403 (74.5%) 355 (53.9%) 0 758 (57.3%)
APOE E2 AF ** 0.024 (0.005) 0.059 (0.009) N/A 0.040 (0.005)
APOE E4 AF ** 0.503 (0.018) 0.344 (0.018) N/A 0.428 (0.013)
*

Shown in mean (sd) format

**

AF stands for allele frequency; mean (sd) is shown