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	Multidimensional Fatigue Inventory (MFI-20)	Chalder Fatigue Scale (CF Scale)
Ämnesområde	Onkologisk omvårdnad	Onkologisk omvårdnad
Familj	Process / pipeline	Process / pipeline
Ursprungsår	1995	1993
Upphovsperson	Eva Smets	Trudie Chalder
Typ	Patient self-report five-dimensional fatigue inventory	Patient self-report fatigue scale with physical and mental subscales
Ursprungskälla	Smets, E. M., Garssen, B., Bonke, B., & De Haes, J. C. (1995). The Multidimensional Fatigue Inventory (MFI-20): a short questionnaire for measuring fatigue. J Psychosom Res, 39(3), 315–325.	Chalder, T., Berelowitz, G., Pawlikowska, T., et al. (1993). Development of a fatigue scale. J Psychosom Res, 37(2), 147–153.
Alias	MFI, MFI-20	CFS, Chalder Fatigue Scale, Fatigue Scale
Närliggande	5	5
Sammanfattning	The Multidimensional Fatigue Inventory is a 20-item self-report instrument that comprehensively measures five distinct dimensions of fatigue: general fatigue, physical fatigue, reduced activity, reduced motivation, and mental fatigue. Developed by Smets and colleagues in 1995, the MFI-20 is grounded in a theoretical model distinguishing fatigue phenomenology from behavioral and cognitive consequences, making it particularly valuable for research examining fatigue mechanisms and interventions targeting specific fatigue dimensions.	The Chalder Fatigue Scale is an 11-item brief self-report instrument measuring physical and mental fatigue, developed by Trudie Chalder and colleagues at St. Bartholomew's Hospital, London, in 1993. Originally designed for chronic fatigue syndrome (myalgic encephalomyelitis/ME) research, the CFS has been extensively validated across cancer populations, chronic illness, and general populations. The scale offers two scoring options: continuous 0–33 scale for severity measurement or bimodal 0–11 scoring for caseness determination, making it versatile for both research and clinical screening.