Table 1

Demographic and neuropsychological information
NC MCI AD
Mean (SD) Mean (SD) Mean (SD) AUC
N 33 60 29 122
EDUa, 13,8 (2,90) 11,2 (3,1) 11,9 (3,7) -
AGEa, b 74,7 (6,00) 75,0 (7,0) 78,1 (7,8) -
GDSa, b, c 3,4 (4,20) 6,7 (4,9) 7,4 (5,4) -
Duration - - 3,9 (3,2) 4,0 (2,2) -
MMSEa, b, c 29,0 (1,10) 27,1 (2,2) 22,9 (3,9) 0,48
WRTa, b, c 58,2 (24,10) 73,4 (25,7) 92,6 (31,7) 0,45
Memory
LM2a, b, c 12,7 (3,50) 5,8 (4,0) 1,5 (2,3) 0,82*
VR2 a, b, c 49,8 (19,30) 20,6 (17,5) 3,8 (7,5) 0,71
RAVLT delay a, b, c 8,6 (2,90) 3,2 (2,9) 0,4 (0,9) 0,76*
Language
COWA lexicala, b 49,0 (16,30) 32,8 (12,9) 25,8 (14,8) 0,51
COWA semantic a, b, c 17,9 (5,50) 13,0 (4,4) 7,4 (4,1) 0,48
BNT a, b, c 53,7 (7,00) 47,0 (8,7) 38,3 (11,0) 0,46
Attention
TRAIL a, b, c 41,5 (12,30) 52,8 (20,4) 68,3 (29,0) 0,45
STROOPda, b 14,7 (3,50) 16,9 (4,7) 24,4 (14,8) 0,49
STROOPwa, b 19,0 (4,70) 23,0 (5,8) 36,6 (33,8) 0,48
STROOPca, b 30,9 (6,80) 41,7 (11,4) 69,0 (44,2) 0,63

Numbers represent means (standard deviation). Age and EDU; education, are measured in number of years. NC stands for normal elderly controls; MCI, Mild Cognitive Impairment; AD, Alzheiemer Disease; AUC, Area Under the Curve from ROC analyses on MCInp vs MCIp; GDS, Geriatric depression Scale; WRT, Word Reading Threshold is in milliseconds; MMSE, Mini-Mental Status Examination; LM2, Logical Memory delayed; VR2, Visual Reproduction delayed; RAVLT delayed, Rey-Auditory Verbal Learning Test delayed; TRAIL, Trail Making Test Subscale A; STROOPd, dots subscale of Stroop test; STROOPw, words subscale of Stroop Test; STROOPc, colors subscale of Stroop Test. a, indicates significant difference between NC and MCI; b, indicates significant difference between NC and AD, c, indicates significant difference between MCI and AD and * indicates significant AUC difference between MCInp and MCIp groups (p < 0.002).

Arsenault-Lapierre et al.

Arsenault-Lapierre et al. BMC Geriatrics 2012 12:38   doi:10.1186/1471-2318-12-38

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