Modified Fatigue Impact Scale (MFIS): Measuring Fatigue

This self-report tool measures how fatigue impacts daily life for people with multiple sclerosis. It helps doctors assess physical, cognitive, and social tiredness to guide treatment.

Modified Fatigue Impact Scale (MFIS) PDF assessment form for evaluating fatigue impact.
MFIS

Modified Fatigue Impact Scale (MFIS)

The Modified Fatigue Impact Scale (MFIS) is a questionnaire assessing how fatigue affects daily life, mainly for multiple sclerosis. It covers physical, cognitive, and psychosocial functioning. It's a key tool that helps clinicians track symptom severity and adjust treatment plans.

Category

Physical health
Mental health
Wellbeing
Rehabilitation

Disease

Assessment
Quality of Life
Rehabilitation
Clinical Measurement

Source

(Fisk et al., 1994)

Author Name

Multiple Sclerosis Council for Clinical Practice Guidelines (1998)

Page Editor

Thijs Sondag

What is Modified Fatigue Impact Scale (MFIS)

The Modified Fatigue Impact Scale (MFIS) is a trusted tool for assessing how tiredness affects daily life, especially for people with multiple sclerosis. Derived from the full Fatigue Impact Scale, this shortened version looks at the past four weeks to help clinicians understand the real burden of fatigue on a patient. It uses 21 items split into physical, cognitive, and psychosocial subscales. Patients rate statements on a scale from zero to four, where higher scores indicate that fatigue is having a much bigger impact on their ability to function well. Taking only about five to ten minutes to complete, it is easy to use in busy clinics or research settings. The total score ranges from 0 to 84 to give a clear snapshot of symptom severity. This makes it great for tracking changes over time or checking if specific treatments are actually working for the patient.

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MFIS Scoring

The Modified Fatigue Impact Scale can be scored using two main approaches: a global total or specific domains. 1. Total Score: Simply sum the ratings from all 21 items, which use a 0 to 4 scale. This produces a final number ranging from 0 to 84. Higher tallies suggest fatigue is really messing with a patients quality of life. 2. Subscales: You can also split results into Physical, Cognitive, and Psychosocial sections. This breakdown helps healthcare pros pinpoint exactly where tiredness hits the hardest, making treatment plans more effective.

View scoring form

Advantages

Outcome tracking

Measures healthcare intervention results systematically.

Treatment planning

Develops personalised strategies based on assessment data.

Efficient collection

Streamlines research data gathering process.

Research validity

Strengthens evidence through systematic measurement approaches.

10
Minutes
21
Questions

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Streamline fatigue assessment with digital MFIS forms. Get instant scoring and track patient progress effortlessly.
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