TABLE 3.
EEG microstate data in dementia and control groups.
| Duration/ms (Std) | HC (n = 18) | EOAD (n = 30) | FTD (n = 14) | ANOVA (2,59) | PHC–EOAD | PEOAD–FTD | PHC–FTD |
| A | 64.7 (9.1) | 70.3 (6.9) | 74.1 (14.8) | F = 3.805 p = 0.028 | 0.181 | 0.703 | 0.028 |
| B | 64.6 (8.1) | 75.7 (10.7) | 70.4 (16.6) | F = 5.140 p = 0.009 | 0.007 | 0.493 | 0.510 |
| C | 66.8 (9.7) | 78.3 (13.9) | 75.3 (25.2) | F = 2.913 p = 0.062 | |||
| D | 63.0 (14.3) | 77.5 (21.8) | 74.6 (19.5) | F = 3.279 p = 0.045 | 0.043 | 1.000 | 0.290 |
| Mean duration | 66.9 (5.8) | 77.8 (9.3) | 76.6 (15.0) | F = 7.008 p = 0.002 | 0.002 | 1.000 | 0.028 |
|
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| Occurrence/s (Std) | HC | EOAD | FTD | ANOVA (2,59) | PHC–EOAD | PEOAD–FTD | PHC–FTD |
|
| |||||||
| A | 3.82 (0.64) | 3.18 (0.57) | 3.62 (0.97) | F = 5.219 p = 0.008 | 0.009 | 0.167 | 1.000 |
| B | 3.95 (0.79) | 3.35 (0.47) | 3.57 (0.72) | F = 4.981 p = 0.010 | 0.008 | 0.889 | 0.292 |
| C | 4.31 (0.72) | 3.62 (0.71) | 3.36 (0.42) | F = 9.439 p ≤ 0.001 | 0.003 | 0.682 | <0.001 |
| D | 3.38 (0.65) | 3.21 (0.76) | 3.42 (1.14) | F = 0.391 p = 0.678 | |||
| Mean occurrence | 3.87 (0.31) | 3.34 (0.36) | 3.49 (0.57) | F = 9.757 p ≤ 0.001 | <0.001 | 0.724 | 0.035 |
| PPS | 22 (1.4) | 18 (1.7) | 19 (3.0) | F = 25.879 p ≤ 0.001 | <0.001 | 0.085 | 0.001 |
HC, healthy controls; EOAD, early-onset Alzheimer disease; FTD, frontotemporal dementia; PPS, global field power peaks per second.