Discriminant validity analysis of the MSSID
| Clinical group | n | Mobility | Fatigue | Overall impact | |||
|---|---|---|---|---|---|---|---|
| Median | Mean rank | Median | Mean rank | Median | Mean rank | ||
| M-W, Mann-Whitney U test. | |||||||
| Results with statistical significance are in bold. | |||||||
| Relapsing remitting | 29 | 4.4 | 40 | 4.4 | 36 | 3.5 | 38 |
| Progressive | 34 | 3.6 | 26 | 4.3 | 29 | 3.3 | 27 |
| M-W | 278 (p = 0.003) | 382 (p = 0.123) | 315 (p = 0.012) | ||||
| Walked unaided | 31 | 4.36 | 39 | 4.6 | 38 | 3.5 | 38 |
| Used walking aid | 32 | 3.5 | 24 | 4.1 | 36 | 3.25 | 25 |
| M-W | 245 (p = 0.001) | 291 (p = 0.007) | 277 (p = 0.004) | ||||
| Relapse in previous 3 months | 21 | 3.6 | 25 | 4 | 23 | 3.25 | 24 |
| No relapse in previous 3 months | 38 | 4.2 | 33 | 4.6 | 34 | 3.5 | 34 |
| M-W | 295 (p = 0.098) | 245 (p = 0.02) | 264 (p = 0.03) | ||||