Table 2.
Control | MCI | AD | |
---|---|---|---|
N | 906 | 681 | 1347 |
Age | 62 ± 9 | 69 ± 9 | 69 ± 9a |
Female# | 404 (45%) | 271 (40%) | 716 (53%)ab |
MMSE | 28 ± 2 | 26 ± 2 | 20 ± 5ab |
Level of education | 5 ± 1 | 5 ± 1 | 5 ± 1a |
APOE e4 carrier# | 281 (36%) | 285 (54%) | 729 (54%)ab |
MTA | 0.4 ± 0.6 | 1.0 ± 0.9 | 1.6 ± 0.9ab |
PA | 0.6 ± 0.7 | 0.9 ± 0.7 | 1.4 ± 0.7ab |
GCA | 0.4 ± 0.6 | 0.8 ± 0.7 | 1.2 ± 0.7ab |
WMH | 0.7 ± 0.7 | 1.1 ± 0.9 | 1.1 ± 0.9a |
Values are mean ± standard deviation or n (%). Group differences between the different diagnostic groups were estimated using Chi-quadrate test# and Kruskal-Wallis test and post hoc Mann-Whitney U-tests when appropriate. Please note that although we report mean ± standard deviation for the visual rating scales, we used non-parametric tests.
P < 0.05 compared to control,
P < 0.05 compared to MCI.