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. Author manuscript; available in PMC: 2010 Feb 18.
Published in final edited form as: Arch Neurol. 2006 Jan;63(1):156–157. doi: 10.1001/archneur.63.1.156

Table 1.

Characteristics of Subjects With Alzheimer Disease by Site

Site Subjects,
No.		 Age at Onset,
Mean ± SD, y* 		Men,
No. (%)		 Autopsy
Confirmed,
No. (%)		 Family History
of Dementia,
No. (%)†
OHSU LAADC 200 68.1 ± 9.9 103 (51.5) 72 (36.0) 102 (51.0)
NCRAD 305 67.8 ± 10.4 105 (34.4) 203 (66.6) 296 (97.0)
UW ADRC 249 66.8 ± 10.1 125 (50.2) 80 (32.1) 96 (38.6)
Total 754 67.5 ± 10.2 333 (44.2) 355 (47.1) 494 (65.5)

Abbreviations: OHSU LAADC, Oregon Health and Science University Layton Aging and Alzheimer’s Disease Center, Portland; NCRAD, National Cell Repository for Alzheimer’s Disease at Indiana University, Indianapolis; UW ADRC, University of Washington Alzheimer’s Disease Research Center, Seattle.

*

Age at onset was not known for 6 subjects.

†

Defined as having 1 or more first-degree relatives with dementia.