Clinical features of study subjects
| Groups | PIGD | PD | HC | P Values | ||
|---|---|---|---|---|---|---|
| PIGD vs HC | PD vs HC | PIGD vs PD | ||||
| No. | 19 | 21 | 20 | |||
| Sex (male/female) | 15:4 | 17:4 | 16:4 | 1.00 | 1.00 | 1.00 |
| Mean age (yr) | 73.7 ± 6.7 | 72.0 ± 4.8 | 71.5 ± 4.9 | 0.24 | 0.742 | 0.36 |
| Tinetti score (median) (IQR) | ||||||
| Balance | 9 (7.5–11) | 12 (11–13) | 15 (15–16) | <.001 | <.001 | 0.03 |
| Gait | 7 (4.5–8.5) | 9 (8–10) | 12 (11–12) | <.001 | <.001 | 0.01 |
| Total | 16 (12–19) | 22 (20–23) | 27 (26–27.3) | <.001 | <.001 | 0.02 |
Note:—IQR indicates interquartile range.