From: Beyond pain in fibromyalgia: insights into the symptom of fatigue
Measure | Dimensions of fatigue | Scaling and number of items | Features |
---|---|---|---|
Physical and mental | 11 items | 2-3Â minute administration time | |
4-point Likert scale | Higher = worse | ||
Recall period for the past month | |||
Checklist Individual Strength (CIS) [69] | Subjective experience, concentration, motivation, and physical activity | 20 items | 4-5Â minute administration time |
7-point Likert scale | Higher = worse | ||
Designed for chronic fatigue syndrome, but also used with fibromyalgia and healthy populations | |||
Recall period for past 2Â weeks | |||
Fatigue Severity Scale (FSS) [70] | Physical, social, and cognitive | 9 items | 2-3Â minute administration time |
7-point Likert scale | Higher = worse | ||
Recall period for the past week | |||
Medical Outcome Study Short Form-36 (SF-36) Vitality Subscale [55, 56] | Energy and vitality | 4 items | 1-2Â minute administration time |
6-point (version 1) or 5-point (version 2) Likert scale | Higher scores = better | ||
Recall period for the past 4Â weeks | |||
Multidimensional Assessment of Fatigue (MAF) [64] | Severity, stress, degree of interference with activities of daily living, timing, and global | 16 items | 5-8Â minute administration time |
10-point rating scales for 1–14, 15 and 16 have 4 ordinal responses | Higher scores = worse | ||
Designed for rheumatoid arthritis, but also used in fibromyalgia | |||
Recall period for the past week | |||
Multidimensional Fatigue Inventory (MFI) [54] | Global experience and somatic, cognitive, affective, and behavioral symptoms | 20 items | 4-5Â minute administration time |
5-point Likert scale | Higher scores = worse | ||
Recall period is stated as 'lately’ | |||
Visual Analogue Scale (VAS) | Any dimension required, typically severity or intensity | 1 item | <1Â minute administration time |
 |  | 100 mm horizontal line anchored by two statements | Recall period typically 1 week, varies |