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. Author manuscript; available in PMC: 2009 Nov 1.
Published in final edited form as: Alzheimers Dement. 2008 Nov;4(6):421–427. doi: 10.1016/j.jalz.2008.04.008

Table 1.

Demographics, Staging, and Clinical Data for Study Participants

Variable Controls
N = 61
Mild AD
N = 22
PDD
N = 12
p value
Age mean 66.46 74.09 71.00 0.002
(SD) (8.76) (10.04) (3.33)
Sex (males / females) 19 / 42 9 / 13 12 / 0 0.001
Race (Caucasian / African-American) 52 / 9 21 / 1 12 / 0 0.182
Education mean 15.21 14.52 16.08 0.218
(SD) (2.25) (2.78) (2.94)
Dementia Rating Scale mean 139.19 118.52 120.50 0.001
(SD) (2.88) (11.20) (13.32)
MMSE mean 29.49 24.77 25.83 0.001
(SD) (0.95) (2.47) (2.59)
CDR* Staging (0 / 0.5 / 1 / 2) 61 / 0 / 0 / 0 0 / 11 / 11 / 0 0 / 5 / 6 / 1 0.001
Geriatric Depression Scale mean 5.88 8.8 10.42 0.017
(SD) (5.30) (6.45) (4.36)
Cholinesterase Inhibitor (yes/no) ---- 16 / 6 6 / 6 0.001
*

CDR = Clinical Dementia Rating Scale