Evaluating Cognitive, Emotional, and Physical Fatigue Domains in Daily Practice by Single-Item Questions in Patients With Advanced Cancer: A Cross-Sectional Pragmatic Study Florian Strasser, MD, Iris Müller-Käser, MD, Daniel Dietrich, PhD Journal of Pain and Symptom Management Volume 38, Issue 4, Pages 505-514 (October 2009) DOI: 10.1016/j.jpainsymman.2008.12.009 Copyright © 2009 U.S. Cancer Pain Relief Committee Terms and Conditions
Fig. 1 Two-factor model of physical and cognitive fatigue: rotated factor plot with positions of domain-SIFs and corresponding functional subscales of EORTC QLQ-C30 and FAQ. SIF: single-item fatigue: emotional (SIFemot), cognitive (SIFcogn), and physical (SIFphys). FAQ: Fatigue Assessment Questionnaire domains: physical (FAQphys), cognitive (FAQcogn), and affective (FAQemot). EORTC: EORTC QLQ-C30 functional subscales: physical (EORTCphys), emotional (EORTCemot), and cognitive (EORTCcogn). Journal of Pain and Symptom Management 2009 38, 505-514DOI: (10.1016/j.jpainsymman.2008.12.009) Copyright © 2009 U.S. Cancer Pain Relief Committee Terms and Conditions