Table 1.
Sample characteristics
| Stroke patients | Healthy controls | df | P (t-test) | P (U-test) | P (χ2-test) | |
|---|---|---|---|---|---|---|
| Age, years | 66.2 ± 13.0 | 66.5 ± 7.2 | 26.7 | 0.937 | ||
| Gender, male/female | 13/5 | 12/6 | 0.717 | |||
| Lesion side, left/right | 8/10 | |||||
| EHI | 0.89 ± 0.15 | 0.78 ± 0.24 | 27.9 | 0.119 | ||
| Months post-stroke | 30.4 ± 20.7 | |||||
| Relative grip strength | 0.88 ± 0.20 | 1.02 ± 0.11 | 25.7 | 0.020 | ||
| ARAT affected handa | 55.5 (45.3–57.0) | 57.0 (57.0–57.0) | 17.0 | 0.007 | ||
| ARAT unaffected handa | 57.0 (57.0–57.0) | 57.0 (57.0–57.0) | n.a. | |||
| NIHSSa | 1.5 (1.0–2.8) | 0.0 (0.0–0.0) | 17.0 | <0.001 | ||
| NIHSS (acute phase)a | 7.0 (6.0–9.8) | |||||
| NIHSS (hand recovery)a | 1.5 (1.0–2.8) |
ARAT = Action Research Arm Test; df = degrees of freedom; EHI = Edinburgh Handedness Inventory; n.a. = not applicable (due to identical values across all subjects and groups); NIHSS (hand recovery) = difference of peak NIHSS Hand item scores during the first 4 days post-stroke and examination in our study; NIHSS = National Institutes of Health Stroke Scale. P-values < 0.05 are highlighted in bold.
Non-parametric data are presented as medians (IQR).