TABLE 1.
Group summaries are given as the mean and the SD of each measure.
| CTR | AD | FTD | CTR–AD | CTR–FTD | AD–FTD | |
|---|---|---|---|---|---|---|
| p‐value | p‐value | p‐value | ||||
| N at first MRI | 99 | 153 | 87 | — | — | — |
| N at second MRI | 68 | 20 | 26 | — | — | — |
| Sex at first MRI, men/women | 30/69 | 59/94 | 47/40 | .22 | .005 | .03 |
| Sex at second MRI, men/women | 18/50 | 10/10 | 15/11 | .09 | .02 | .77 |
| Age at first MRI, years (SD) | 60.2 (10.5) | 64.3 (9.7) | 63.6 (8.3) | .003 | .03 | .5 |
| Age at second MRI, years (SD) | 65.0 (7.2) | 62.1 (4.5) | 63.8 (5.9) | .3 | .5 | .5 |
| Time between MRIs, years (SD) | 2.1 (0.4) | 1.9 (0.3) | 1.4 (0.5) | .3 | 2.5 e‐9 | 4.7 e‐5 |
Note: Differences between groups are calculated using Fisher test for sex and the ANOVA test for the rest of the variables. Significant group differences are highlighted in bold, and pairwise differences were measured with Benjamini–Hochberg correction (p‐values threshold .05).
Abbreviations: AD, Alzheimer's disease; CTR, controls; FTD, frontotemporal dementia; MRI, magnetic resonance imaging.