Linganisha mbinu

	Kipimo cha Uchovu wa Saratani (CFS)	Kipimo cha Uchovu cha Chalder (CF Scale)
Nyanja	Uuguzi wa Onkolojia	Uuguzi wa Onkolojia
Familia	Process / pipeline	Process / pipeline
Mwaka wa asili	2000	1993
Mwanzilishi	Takuo Okuyama	Trudie Chalder
Aina	Patient self-report three-dimensional fatigue scale	Patient self-report fatigue scale with physical and mental subscales
Chanzo asilia	Okuyama, T., Akechi, T., Kugaya, A., et al. (2000). Development and validation of a cancer fatigue scale: a brief, three-dimensional, disease-specific instrument. J Pain Symptom Manage, 19(1), 5–14.	Chalder, T., Berelowitz, G., Pawlikowska, T., et al. (1993). Development of a fatigue scale. J Psychosom Res, 37(2), 147–153.
Majina mbadala	CFS, Okuyama Fatigue Scale	CFS, Chalder Fatigue Scale, Fatigue Scale
Zinazohusiana	5	5
Muhtasari	The Cancer Fatigue Scale is a 15-item disease-specific self-report instrument that comprehensively assesses three dimensions of cancer-related fatigue: physical, cognitive, and emotional. Developed by Takuo Okuyama and colleagues at the Japanese Foundation for Cancer Research and published in 2000, the CFS provides a brief yet multidimensional fatigue profile suitable for both clinical practice and research, with particular strength in non-English-speaking populations where it has been extensively validated.	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.