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Title: Mediators and moderators of the stressor-fatigue relationship in nonclinical samples
Contributor(s): Thorsteinsson, Einar B  (author)orcid ; Brown, Rhonda  (author)
Publication Date: 2009
DOI: 10.1016/j.jpsychores.2008.06.010
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Abstract: Objective: Two cross-sectional studies examined statistical mediators and moderators of the stressful life event (SLE)–fatigue relationship. If such factors can be delineated, they might suggest possible avenues for improving current psychological treatments for fatigue. Methods: In Study 1, 281 (63 males and 218 females) participants, 18 to 70 years, completed a questionnaire asking about stressors, social support, demographics, and fatigue. In Study 2, 609 (225 males and 384 females) participants, 18 to 80 years, answered questions about the above mentioned variables, and sleep quality and use of sleep medications. Results: Younger age, more SLEs, and low social support satisfaction were found to be related to fatigue levels in Study 1. These results were replicated in Study 2, and, additionally, sleep disturbance (i.e., low sleep quality, use of sleep medications) was related to fatigue levels, while age was related to fatigue via the use of sleep medications. The SLE–fatigue relationship was found to be mediated through different mechanisms in males and females: social support dissatisfaction and sleep quality mediated the relationship in females, while sleep quality mediated the relationship in males. Conclusion: These results suggest that gender tailoring of psychological treatments may improve their effectiveness in treating fatigue, in particular, by targeting social support satisfaction in females and sleep hygiene in both sexes.
Publication Type: Journal Article
Source of Publication: Journal of Psychosomatic Research, 66(1), p. 21-29
Publisher: Elsevier
Place of Publication: USA
ISSN: 0022-3999
Field of Research (FOR): 170106 Health, Clinical and Counselling Psychology
Socio-Economic Outcome Codes: 920401 Behaviour and Health
920408 Health Status (e.g. Indicators of Well-Being)
920410 Mental Health
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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