Baseline characteristics for study participants
| NC | PD | PSP | CBD | P Value | |
|---|---|---|---|---|---|
| No. | 12 | 9 | 5 | 6 | |
| Age (yr) | 68.6 ± 5.5 | 66.3 ± 7.9 | 69.2 ± 3.0 | 70.5 ± 4.8 | .67 |
| Sex (F/M) | 4:8 | 2:7 | 3:2 | 5:1 | .09 |
| Disease duration (yr) | N/A | 8.6 ± 4.2 | 3.8 ± 1.4 | 5.5 ± 1.4 | .03a |
| Side of main symptoms | N/A | 5 left; 4 right | N/A | 3 left; 3 right | .24 |
| eTIV (L) | 1.59 ± 0.18 | 1.53 ± 0.10 | 1.43 ± 0.27 | 1.58 ± 0.32 | .24 |
Note:—NC indicates healthy control; L, liters; NA, not applicable; eTIV, estimated total intracranial volume.
↵a Statistically significant (P < .05).