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	Škála únavy Piper (PFS)	Škála únavy pri rakovine (CFS)
Odbor	Onkologické ošetrovateľstvo	Onkologické ošetrovateľstvo
Rodina	Process / pipeline	Process / pipeline
Rok vzniku	1989	2000
Tvorca	Barbara Piper	Takuo Okuyama
Typ	Patient self-report multidimensional fatigue scale	Patient self-report three-dimensional fatigue scale
Pôvodný zdroj	Piper, B. F., Dibble, S. L., Dodd, M. J., Weiss, M. C., Slater, G., & Paul, S. M. (1989). The revised Piper Fatigue Scale: psychometric evaluation in women with breast cancer. Oncol Nurs Forum, 16(6), 751–758.	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.
Ďalšie názvy	PFS	CFS, Okuyama Fatigue Scale
Príbuzné	5	5
Zhrnutie	The Piper Fatigue Scale is a 22-item multidimensional self-report instrument that evaluates cancer-related fatigue across four conceptually distinct domains: behavioral/severity, affective/meaning, sensory, and cognitive/mood. Developed by Barbara Piper and colleagues in 1989 and revised in 1998, the PFS is grounded in a theoretical model of fatigue mechanisms and is widely used in oncology research and clinical practice to assess treatment-related and disease-related fatigue.	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.