Table 4.
6MWT convergent validity: correlations with other motor function outcome measures and patients reported outcomes.
| 6MWT | n | Pearson/Spearmann correlation coefficient | p-value |
|---|---|---|---|
| DM-1 Active-C | 60 | 0.798 | 0.000* |
| R-Pact | 60 | 0.779 | 0.000* |
| QMFT | 60 | 0.868 | 0.000* |
| FI-2 | 60 | 0.676 | 0.000* |
| GSGC | 60 | −0.858 | 0.000* |
| 30sec sit to stand | 60 | 0.733 | 0.000* |
| MMT LL sum score | 60 | 0.492 | 0.000* |
| FDSS | 60 | −0.362 | 0.003§ |
| BPI - SF | 60 | −0.453 | 0.001§ |
| MBS | 60 | −0.218 | 0.084 |
*
p < 0.001,
§
p < 0.05. QMFT, quantitative motor function test; FI-2, functional index 2; GSGC, Gait Stairs Gowers Chair; MMT LL, Manual muscle test sum score of lower limbs; FDSS, fatigue and daytime sleepiness score; BPI-SF, Brief Pain Inventory Short Form; MBS, Myotonia Behavior Scale.