shortened_mfis_score: Shortened Modified Fatigue Impact Scale (MFIS-5)

In cliot: Clinical Indices and Outcomes Tools

Shortened Modified Fatigue Impact Scale (MFIS-5)

Description

Calculates the score for the 5-item Shortened Modified Fatigue Impact Scale (MFIS-5). This tool assesses the impact of fatigue on physical, cognitive, and psychosocial functioning in patients with multiple sclerosis (MS). It is a subset of the full 21-item MFIS.

Usage

shortened_mfis_score(less_alert, limit_physical_tasks, sustain_physical_effort,
                     limit_clear_thinking, trouble_concentrating)

Arguments

less_alert	Numeric (0-4). "I have been less alert." (0=Never, 4=Almost always).
limit_physical_tasks	Numeric (0-4). "I have been less able to complete tasks that require physical effort." (0=Never, 4=Almost always).
sustain_physical_effort	Numeric (0-4). "I have had trouble maintaining physical effort for long periods." (0=Never, 4=Almost always).
limit_clear_thinking	Numeric (0-4). "I have been less able to complete tasks that require clear thinking." (0=Never, 4=Almost always).
trouble_concentrating	Numeric (0-4). "I have had trouble concentrating." (0=Never, 4=Almost always).

Details

The MFIS-5 consists of items 1, 9, 10, 17, and 19 from the full MFIS. Scoring for each item: 0 = Never 1 = Rarely 2 = Sometimes 3 = Often 4 = Almost always

Value

A list containing:

MFIS_5_Score	The calculated total score (Range 0-20).
Interpretation	General interpretation of the score.

References

Fisk JD, Ritvo PG, Ross L, et al. Measuring the functional impact of fatigue: initial validation of the fatigue impact scale. Clin Infect Dis. 1994;18 Suppl 1:S79-83. doi:10.1093/clinids/18.supplement_1.s79 Multiple Sclerosis Quality of Life Inventory (MSQLI). National Multiple Sclerosis Society.

Examples

# Example 1: Moderate Fatigue Impact
# Scores: 2, 3, 2, 1, 2
shortened_mfis_score(2, 3, 2, 1, 2)

# Example 2: Severe Fatigue Impact
# Scores: 4, 4, 3, 4, 3
shortened_mfis_score(4, 4, 3, 4, 3)

cliot documentation built on Dec. 1, 2025, 1:06 a.m.