Medicine:Unidimensional Fatigue Impact Scale
The Unidimensional Fatigue Impact Scale (U-FIS) is a disease-specific patient-reported outcome measure which measures the impact of multiple sclerosis related fatigue.[1] It is a 22-item unidimensional scale which is based on needs-based quality of life theory.[1]
Background
The U-FIS was developed by Galen Research and published in 2009.[1] It was derived from the Fatigue Impact Scale, a scale identified by the Multiple Sclerosis Council for Clinical Practice Guidelines “as the most appropriate for assessing the impact of MS-related fatigue on quality of life”.[2]
Data from the FIS went through Rasch analysis and additional items were added from interviews with multiple sclerosis patients. The U-FIS was then tested for validity via patient interviews and a validation survey.[1]
International Use
The U-FIS has been translated and validated into eight different language versions: Canadian English, Canadian French, German, Swedish, Italian, French, US English and Spanish.[3]
It has been recommended for use in determining fatigue impact by an independent meta analysis[4] and has also been utilized in a study investigating the role of neuroticism, perfectionism and depression in chronic fatigue syndrome.[5]
References
- ↑ 1.0 1.1 1.2 1.3 Meads, DM; Doward, LC; McKenna, SP; Fisk, J; Twiss, J; Eckert, B (October 2009). "The development and validation of the Unidimensional Fatigue Impact Scale (U-FIS).". Multiple Sclerosis (Houndmills, Basingstoke, England) 15 (10): 1228–38. doi:10.1177/1352458509106714. PMID 19556314.
- ↑ Mathiowetz, V (Jul–Aug 2003). "Test-retest reliability and convergent validity of the Fatigue Impact Scale for persons with multiple sclerosis". The American Journal of Occupational Therapy 57 (4): 389–95. doi:10.5014/ajot.57.4.389. PMID 12911080.
- ↑ "International Development of the Unidimensional Fatigue Impact Scale (U-FIS)". Value in Health 13 (4): 463–8. 2010. doi:10.1111/j.1524-4733.2010.00706.x. PMID 20230543.
- ↑ "Self-report fatigue questionnaires in multiple sclerosis, Parkinson's disease and stroke: a systematic review of measurement properties". Quality of Life Research 21 (6): 925–44. August 2012. doi:10.1007/s11136-011-0009-2. PMID 22012025.
- ↑ Valero, S; Sáez-Francàs, N; Calvo, N; Alegre, J; Casas, M (October 2013). "The role of neuroticism, perfectionism and depression in chronic fatigue syndrome. A structural equation modeling approach". Comprehensive Psychiatry 54 (7): 1061–7. doi:10.1016/j.comppsych.2013.04.015. PMID 23759150.
 |  |
