Fatigue PROs | Description |
Fatigue Severity Scale (FSS) | 9-item scale covering the general aspects of fatigue Originally derived for people with multiple sclerosis and SLE |
Multi-dimensional Fatigue Inventory (MFI) | 20-item scale divided into five domains: general fatigue, physical fatigue, mental fatigue, reduced motivation and reduced activity The threshold for significant fatigue depends on age and gender |
Visual analogue scale to evaluate fatigue severity (VAS-F) | The scale consists of 18 items related to the subjective experience of fatigue, using fatigue and energy subscales |
Functional Assessment of Chronic Illness Therapy–Fatigue (FACIT-Fatigue) | 13-item self-reported questionnaire assessing aspects of physical and mental fatigue, and their effects on function and daily living |