Table 1 Clinical correlation of instrument-measured rigidity.
From: Clinical and brain functional correlates of instrumental rigidity measurement in Parkinson’s disease
Clinical data | Mean ± S.D. | Bias difference | Elastic Coefficient | ||
|---|---|---|---|---|---|
Coefficient | P value | Coefficient | P value | ||
Age (year) | 66.8 ± 7.2 | 0.075 | 1.00 | − 0.023 | 1.00 |
Disease duration (year) | 6.40 ± 3.77 | − 0.22 | 0.49 | − 0.083 | 1.00 |
Body mass index (kg/m2) | 23.2 ± 4.9 | − 0.49 | 0.012 | 0.21 | 0.51 |
Arm length (cm) | 23.7 ± 1.4 | − 0.11 | 1.00 | − 0.22 | 0.47 |
L-dopa equivalent daily dose (mg) | 720 ± 404 | − 0.080 | 1.00 | 0.11 | 1.00 |
UPDRS III | 37.8 ± 17.5 | 0.27 | 0.28 | 0.45 | 0.026 |
Mini-mental state exam | 28.3 ± 1.8 | − 0.18 | 0.72 | − 0.19 | 0.71 |
