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What it measures:

Fatigue; various versions have been reported:

0‐10 scale: 0=fatigue no problem, 10=fatigue major problem 1, 2

100 mm line: left end of scale=not tired at all, right end of scale=extremely tired 3‐5

50 mm line: left=fatigue worsened as much as possible, right=fatigue completely relieved 6

0‐10 scale: 0=greatest fatigue, 10=less fatigue 7

0‐100 mm line; 3 separate VAS‐F scales; each rates according to left=no influence at all, right=a lot of influence: 8

  • VAS‐1: Impact on Daily Life--how much influence does fatigue have on your daily life (the everyday life at home and work) and on your relationships?
  • VAS‐2: Impact on Self Care Activities--how much influence does fatigue have on daily activities, like grooming and dressing, etc?
  • VAS‐3: Impact on Household and Occupation--how much influence does fatigue have on household or occupational activities?

18 individual 0‐100 mm lines: 13–fatigue subscales, 5‐energy subscales. Left no difficulty, right extremely affected 9

Target Population:

People with multiple sclerosis (MS)

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