Table 4.
Itema | All | rb | Normal (n = 6) | CIND (n = 21) | Dementia (n = 23) | ANOVA, p valuec | AD etiology (n = 26) | Education effect, p valued |
---|---|---|---|---|---|---|---|---|
Trails (1) | 0.40 | 0.55 | 0.50 | 0.67 | 0.13 | 0.0006* | 0.31 | 0.37 |
Cube (1) | 0.30 | 0.57 | 0.83 | 0.38 | 0.09 | 0.0005* | 0.15* | 0.10 |
Clock (3) | 1.84 | 0.76 | 2.67 | 2.33 | 1.17 | <0.0001* | 1.58 | 0.07 |
Naming (3) | 2.34 | 0.63 | 2.83 | 2.52 | 2.04 | 0.04 | 2.15 | 0.02 |
Attention | ||||||||
Digits (2) | 1.28 | 0.70 | 1.83 | 1.48 | 0.96 | 0.01 | 1.04 | 0.14 |
Letters (1) | 0.74 | 0.55 | 1.00 | 0.86 | 0.57 | 0.03 | 0.77 | 0.36 |
Serial subtraction (3) | 1.56 | 0.67 | 2.33 | 1.86 | 1.09 | 0.01 | 1.27 | 0.02 |
Language | ||||||||
Repeat (2) | 0.72 | 0.62 | 1.67 | 0.86 | 0.35 | 0.0005* | 0.50* | 0.25 |
Fluency (1) | 0.42 | 0.55 | 0.83 | 0.48 | 0.26 | 0.03 | 0.27 | 0.10 |
Abstraction (2) | 0.96 | 0.59 | 1.17 | 1.24 | 0.65 | 0.07 | 0.62 | 0.08 |
Delayed recall (5) | 1.56 | 0.72 | 3.33 | 2.43 | 0.30 | <0.0001* | 0.50* | 0.96 |
Orientation (6) | 4.30 | 0.78 | 5.83 | 5.71 | 2.61 | <0.0001* | 3.27* | 0.49 |
Significance level of 0.004.
Figures in parentheses are total possible points.
r represents item-total correlation.
p value for ANOVA tests of item score difference among three diagnostic groups.
The p value indicates the significance of the regression coefficient of education when adjusting for diagnosis.