Table 2.
Group comparison of joint position error of patients with cervical dystonia versus healthy controls (Mann–Whitney U test)
| Patients n = 24 | Controls n = 70 | p | |
|---|---|---|---|
| Mdn (IQR) | Mdn (IQR) | ||
| Absolute error | |||
| Extension | 4.79° (6.20°) | 3.06° (2.52°) | .015* |
| Flexion | 4.66° (2.20°) | 3.04° (2.60°) | .002** |
| Left rotation | 3.69° (3.41°) | 2.05° (1.20°) | <.0001** |
| Right rotation | 3.37° (2.58°) | 2.22° (1.71°) | .006** |
| Constant error | |||
| Extension | −2.93° (4.70°) | 1.07° (4.11°) | <.0001** |
| Flexion | 3.39° (2.62°) | −1.29° (3.68°) | <.0001** |
| Left rotation | 2.33° (5.31°) | −0.25° (2.33°) | .001** |
| Right rotation | −1.21° (3.24°) | 0.45° (3.61°) | .004** |
Mdn, Median; IQR, interquartile range.
*Significant at 0.05 level, **significant after Bonferroni correction p < .00625 (.05/8 = .00625).