Table 1.
Subject characteristics.
| Number of matched pair of subjects | Sex (female/male) | Patients with Parkinson's disease | Healthy controls | |||
|---|---|---|---|---|---|---|
| Hoehn and Yahr scalea (H&Y) | Duration of Parkinson's disease (years) | Functional oral intake scaleb (FOIS) | Age (years) | Age (years) | ||
| 1 | M | I | 5 | 7 | 70 | 68 |
| 2 | F | II | 7 | 7 | 64 | 63 |
| 3 | M | II | 7 | 7 | 50 | 46 |
| 4 | M | III | 6 | 7 | 80 | 81 |
| 5 | F | II | >5 | 7 | 73 | 74 |
| 6 | M | III | 5 | 7 | 57 | 53 |
| 7 | F | III | 7 | 7 | 62 | 60 |
| 8 | M | II | 7 | 5 | 70 | 67 |
| 9 | M | III | 16 | 7 | 70 | 70 |
| 10 | M | I | >5 | 7 | 66 | 68 |
a(H&Y): the range of scores is one to five, indicating, respectively, unilateral involvement usually with minimal or no functional disability, and confinement to bed or wheelchair unless aided [12].
b(FOIS): the range of scores is one to seven, indicating nothing by mouth to total oral diet with no restrictions [13].