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. Author manuscript; available in PMC: 2013 Aug 1.
Published in final edited form as: Neurobiol Aging. 2011 May 4;33(8):1758–1768. doi: 10.1016/j.neurobiolaging.2011.03.017

Table 1.

Demographic and clinical characteristics.

African American (n=128) Hispanic (n=113) Caucasian(n=160) All (n=401)

Gender
 N (%) Female 88 (68.8) 75 (66.4) 88 (55.0) 251 (62.6)

Education (years)
 Mean (S.D.) 13.0 (3.2) 8.3 (5.6) 14.3 (3.5) 12.2 (4.8)

Age (years)
 Mean (S.D.) 75.5 (6.9) 72.9 (7.2) 76.0 (7.3) 75.0 (7.3)

Clinical Diagnosis
 N (%) Normal 72 (56.2) 62 (54.9) 73 (45.6) 207 (51.6)
 N (%) MCI 43 (33.6) 31 (27.4) 58 (36.3) 132 (32.9)
 N (%) Dementia 13 (10.2) 20 (17.7) 29 (18.1) 62 (15.5)