Table 6.
FSS group differences
| Variable | FSS total, mean (SD) |
|---|---|
| Age, years | |
| <40 (n = 70) | 4.1 (1.8) |
| 40–49 (n = 123) | 4.5 (1.7) |
| 50–59 (n = 184) | 4.4 (1.7) |
| 60–69 (n = 130) | 4.7 (1.8) |
| ≥70 (n = 44) | 4.3 (1.7) |
| Mean difference (F test p‐value) | .216 |
| Gender | |
| Female (n = 433) | 4.5 (1.7) |
| Male (n = 118) | 4.4 (1.7) |
| Mean difference (t test p‐value) | .790 |
| Employment status (All subjects) | |
| Employed or self‐employed1 (n = 194) | 3.9 (1.7) |
| Student2 (n = 2) | 3.4 (1.3) |
| Unemployed3 (n = 23) | 4.6 (1.8) |
| On disability pension4 (n = 222) | 4.9 (1.6) |
| On retirement pension5 (n = 110) | 4.5 (1.8) |
| Mean difference (F test p‐value) | <.00011≠4,5 |
| Employment status (subjects aged <63 years, n = 419) | |
| Disability pension due to MS (subjects aged <63 years; n = 198) | 4.9 (1.6) |
| All other subjects aged <63 years (n = 221) | 4.0 (1.7) |
| Mean difference (t test p‐value) | <.0001 |
| EDDS | |
| 0–31 (n = 243) | 3.9 (1.7) |
| 4–6.52 (n = 227) | 5.0 (1.5) |
| 7–93 (n = 81) | 4.6 (1.9) |
| Mean difference (F test p‐value) | <.00011≠2,3 |
| Disease phenotype | |
| Relapsing‐remitting1 (n = 243) | 4.1 (1.7) |
| Secondary progressive2 (n = 160) | 5.0 (1.5) |
| Primary progressive3 (n = 94) | 4.9 (1.7) |
| Unknown (n = 54)4 | 3.8 (2.0) |
| Mean difference (F test p‐value) | <.00011≠2,3; 2≠4; 3≠4 |
EDDS, Patient Assessment of Expanded Disability Status Scale Levels; FSS, Fatigue Severity Scale; MS, multiple sclerosis; SD, standard deviation. Superscript numbers refers to subgroups and differences between them.