Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/12539
Title: Mediators and Moderators of Stress - Fatigue and Psychological Distress - Fatigue Relationships in a Non-Clinical Sample
Contributor(s): Liffman, Shirley (author); Thorsteinsson, Einar B  (author)orcid ; Brown, Rhonda  (author); Hine, Donald W  (author)orcid 
Publication Date: 2012
Handle Link: https://hdl.handle.net/1959.11/12539
Abstract: Objective: Stress, psychological distress and fatigue are frequently co-morbid experiences, but the nature of any temporal and/or causal relationships is unclear. This study examined possible mediators and moderators of the stress/psychological distress - fatigue relationship in a non-clinical sample. Methods: A questionnaire assessed stress (i.e., stressful life-events, perceived stress), psychological distress (i.e., state and trait anxiety, depression), sleep quality, social support (i.e., number, quality), illness symptoms and fatigue in 97 female and 40 male university students, aged 18-63 years. Results: Regression models indicated that high perceived stress and state-anxiety, poor sleep quality and general illness symptoms predicted 48% of the variance in fatigue severity. Poor sleep quality and gastrointestinal (GIT) symptoms partly mediated between stress and fatigue, and poor sleep quality partly mediated between psychological distress and fatigue. Social support quality moderated the stress-fatigue relationship. Conclusions: Stress and psychological distress may contribute to fatigue in healthy adults by first impairing sleep quality and/or increasing vulnerability to infection, which may then directly induce fatigue symptoms.
Publication Type: Journal Article
Source of Publication: Psychology and Education: An Interdisciplinary Journal, 49(3&4), p. 29-45
Publisher: South Carolina State University
Place of Publication: United States of America
ISSN: 1553-6939
Field of Research (FoR) 2008: 170103 Educational Psychology
170106 Health, Clinical and Counselling Psychology
Field of Research (FoR) 2020: 520102 Educational psychology
520304 Health psychology
520303 Counselling psychology
520302 Clinical psychology
Socio-Economic Objective (SEO) 2008: 929999 Health not elsewhere classified
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Other Links: http://www.psychologyandeducation.net/pae/2013/08/14/mediators-and-moderators-of-stress-fatigue-and-psychological-distress-fatigue-relationships-in-a-non-clinical-sample/
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