Demographic details of controls and patient groups
| No. | Age (mean) | Sex (female/male) | |
|---|---|---|---|
| Controls | 13 | 67.6 ± 10.5 | 8:5 |
| IPS | 12 | 66.3 ± 7.8 | 2:10 |
| MSA-P | 10 | 62.5 ± 8.5 | 5:5 |
| PSP | 9 | 67.0 ± 4.3 | 2:7 |
| Total | 44 | 66.0 ± 8.3 | 17:27 |
Note:—MSA-P indicates multiple systems atrophy–type Parkinson.