Table 5.
Relationships between study variables after 1 year of follow-up.
| Mean | Range | Age (years) | Disease duration (years) | MMSE | mH&Y | FFT angle (°) | SV angle (°) | UPDRS I | UPDRS II | UPDRS III | UPDRS IV | UPDRS total | LED (mg/day) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Age (years) | 71.3 | 56–84 | ||||||||||||
| Disease duration (years) | 9.8 | 2–28 | −0.449 | |||||||||||
| MMSE | 26.9 | 21–30 | −0.286 | −0.149 | ||||||||||
| mH&Y | 2.5 | 1–4 | −0.101 | −0.414 | 0.223 | |||||||||
| FFT angle (°) | 13.9 | 5–38 | −0.227 | 0.218 | 0.114 | −0.181 | ||||||||
| SV angle (°) | 11.0 | 3–23 | −0.359 | 0.139 | −0.012 | 0.198 | 0.639 ∗ | |||||||
| UPDRS I | 2.4 | 0–5 | −0.057 | 0.113 | −0.296 | 0.237 | −0.529 ∗ | 0.060 | ||||||
| UPDRS II | 6.7 | 0–14 | 0.008 | 0.027 | −0.386 | 0.164 | −0.383 | 0.064 | 0.639 ∗ | |||||
| UPDRS III | 16.5 | 3–35 | 0.128 | 0.057 | −0.351 | −0.012 | −0.270 | 0.192 | 0.561 ∗ | 0.624 ∗∗ | ||||
| UPDRS IV | 2.2 | 0–6 | −0.223 | 0.722 ∗ | −0.151 | −0.129 | −0.158 | −0.199 | 0.179 | 0.105 | −0.196 | |||
| UPDRS total | 27.8 | 7–49 | 0.012 | 0.155 | −0.397 | 0.036 | −0.381 | 0.119 | 0.692 ∗ | 0.821 ∗ | 0.928 ∗ | 0.032 | ||
| LED (mg/day) | 938 | 425–1849 | 0.109 | 0.366 | −0.203 | −0.284 | 0.088 | −0.035 | −0.163 | 0.223 | −0.103 | 0.461 | 0.043 |
Values shown are Spearman correlation coefficients, unless otherwise indicated. MMSE, Mini-Mental State Examination; mH&Y Scale, modified Hoehn & Yahr Scale; FFT angle, forward flexion of trunk angle; SV angle, subjective vertical position angle; UPDRS, Unified Parkinson's Disease Rating Scale; LED, levodopa-equivalent dose. ∗p < 0.05.