Psychometric Properties of the Persian Version of the Fatigue Impact Scale (FIS-P) in Patients with Multiple Sclerosis
Author(s):
Abstract:
Objectives
This study was designed to evaluate the psychometric features of the Persian version of the Fatigue Impact Scale (FIS-P) tool when used in Iranian MS patients. Methods
140 MS patients and the equivalent number of healthy controls completed the following assessments: FIS-P, Fatigue Severity Scale (FSS), SF-36 questionnaire and the Mini Mental State Examination (MMSE). Results
A significant inverse correlation between FIS and the quality of life (SF 36 assessment tool), as well as a positive and significant correlation with the FSS were noted. The Intraclass Correlation Coefficient (ICC) values for the inter-rater reliability for the physical, cognitive, and social sections and the whole questionnaire were 0.89, 0.86, 0.95 and 0.98, respectively. The FIS Persian version was shown to possess a high reliability (with a Cronbach’s alpha of 0.953). Likewise, the ICC values for the test-retest reliability were 0.86, 0.87, 0.92 and 0.93 for the physical, cognitive, social subscales and the whole questionnaire, respectively. This suggested a high reliability for the FIS-P. Discussion
With a proper validity and reliability, the Persian-version of FIS retains the capability for being used in the assessment of fatigue and evaluation of the treatment and rehabilitation effects on fatigue-related symptoms among Persian-speaking patients with MS.Keywords:
Language:
English
Published:
Iranian Rehabilitation Journal, Volume:13 Issue: 25, Sep 2015
Pages:
32 to 38
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