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Shortened Fatigue Impact Scale (MFIS-5)

Purpose: To assess the perceived impact of chronic fatigue on the patient's quality of life over the previous month using the Fatigue Impact Scale.

Description

The Fatigue Impact Scale is based upon the patient's perceived impact of fatigue on his or her quality of life over the previous month, considering cognitive, physical, and social aspects. It can be used for patients with Chronic Fatigue Immune Dysfunction Syndrome, Multiple Sclerosis or any disorder for which fatigue is a major clinical component.


Number of items: 5 (modified 21, original 40)

 

MFIS5

mFIS

FIS

Because of my fatigue

Dimension

01

01

01

I have been less alert. (I feel less alert.)

Cognitive

02

09

16

I have been limited in my ability to do things away from home. (My ability to travel outside my home is limited.)

Social

03

10

17

I have had trouble maintaining physical effort f or long periods. (I have trouble maintaining physical effort for long periods.)

Physical

04

17

31

I have been less able to complete tasks that require physical effort. (I am less able to complete tasks that require physical effort.)

Physical

05

19

35

I have had trouble concentrating. (I find it hard to concentrate.)

Cognitive

 

Subgroups:

(1) cognitive: 1, 5

(2) psychosocial: 2

(3) physical: 3, 4

 

Response

Points

never

0

rarely

1

sometimes

2

often

3

almost always

4

 

The total points for each group and for the entire questionnaire are then summated.

 

Interpretation:

• cognitive: 2 questions, maximum score 8, minimum score 0

• physical: 2 questions, maximum score 8, minimum score 0

• social: 1 question, maximum score 4, minimum score 0

• minimum total score: 0

• maximum total score: 20

• A higher score is associated with greater functional limitations.


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Objective

ICD-10