Table 1.
Commonly used subjective measures of MS-related fatigue.
| Name of scale | Reference | Population | Specified fatigue subscales | No. of items | Scoring |
|---|---|---|---|---|---|
| Modified fatigue impact scale | Paralyzed Veterans of America, 1998 (4) | MS | Physical, cognitive, and psychosocial | 21 | 1–7 (Likert scale) |
| Rochester fatigue diary | Schwid et al. (20) | MS | Lassitude [reduced energy] | 12 | 0–100 (mm) visual analog scale |
| Fatigue descriptive scale | Iriarte et al. (21) | MS | Spontaneous mention of fatigue, antecedent conditions, frequency, impact on life | 5 | 0–3 (Likert scale) |
| Fatigue impact scale | Fisk et al. (22) | MS | Physical, cognitive, psychosocial | 40 | 0–4 (Likert scale) |
| Fatigue assessment instrument | Schwartz et al. (23) | MS, chronic fatigue syndrome, lupus, dysthymia, healthy | Fatigue severity, situation specificity, consequences of fatigue, responds to rest/sleep | 29 | 1–7 (Likert scale) |
| Single item visual analog scale of fatigue | Krupp et al. (24) | MS, lupus, healthy | Depends on the question | 1 | 0–100 (mm) visual analog scale |
| Fatigue severity scale | Krupp et al. (24) | MS, lupus, healthy | None | 9 | 1–7 (Likert scale) |
| Fatigue scale for motor and cognitive functions (FSMC) | Penner et al. (25) | MS | Motor and cognition | 20 | 1–5 (Likert scale) |