Relationship satisfaction, communication self-efficacy, and chronic fatigue syndrome-related fatigue, by Sara F Milrad, Daniel L Hall, Devika R Jutagir, Emily G Lattie, Sara J Czaja, Dolores M Perdomo, Gail Ironson, Brian D Doss, Armando Mendez, Mary Ann Fletcher, Nancy Klimas, Michael H Antonia in Social Science & Medicine Vol 237, Sep 2019 [https://doi.org/10.1016/j.socscimed.2019.112392]

 

Research highlights:

  • Relationship satisfaction and depression can impact CFS-related fatigue.
  • Patient symptom disclosure satisfaction (PSDS) is a hypothesized intermediate.
  • Depression and PSDS were examined as intermediary variables of this relationship.
  • Relationship satisfaction was related to fatigue severity via depression and PSDS.
  • This underscores the importance of considering these factors in the context of CFS.

Research abstract:

Rationale
Relationship dissatisfaction has been linked with worse health outcomes in many patient populations, though the mechanism(s) underlying this effect are unclear. Among patients with chronic fatigue syndrome (CFS) and their partners, there is evidence for a bi-directional association between poorer relationship satisfaction and the severity of CFS-related fatigue.

Objective
Here, we hypothesized that relationship dissatisfaction negatively impacts fatigue severity through greater depression and less patient satisfaction about communication about symptoms to partners.

Method
Baseline data were drawn from diagnosed CFS patients (N = 150) participating in a trial testing the efficacy of a stress management intervention. Data derived from fatigue severity (Fatigue Symptom Index, FSI), depression (Center for Epidemiologic Survey-Depression, CES-D), relationship quality (Dyadic Adjustment Scale, DAS) and communication satisfaction (Patient Symptom Disclosure Satisfaction, PSDS) questionnaires were used for bootstrapped indirect effect analyses using parallel mediation structural equation modeling in Mplus (v8). Age and BMI were entered as covariates.

Results
Greater relationship satisfaction predicted greater communication satisfaction (p < 0.01) and lower CES-D scores (p < 0.01), which in turn were each significantly related to greater fatigue severity (p < 0.05). Tests of the indirect paths indicated that relationship satisfaction had a significant effect on fatigue severity through both constructs, but primarily via depression. There was no direct association between relationship satisfaction and fatigue severity after the intermediate variables (depression, communication satisfaction) were included in the model.

Conclusion
Results highlight the importance of considering depression and communication-related factors when examining the effects of relationship satisfaction on CFS symptoms such as fatigue. Further mechanism-based, longitudinal research might identify relationship-related mediating variables that can be targeted therapeutically.

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