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Contributing factors to depressed mood in Multiple Sclerosis.
William D Voss1, Peter A Arnett, Christopher I Higginson
1Washington State University, Pullman, WA, USA.
Summary
Physical disability and fatigue in multiple sclerosis (MS) patients predict depressed mood, often by reducing recreational activities. Interventions focusing on enjoyable activities may help manage depression in MS.
Area of Science:
- Psychology
- Neurology
- Rehabilitation Medicine
Background:
- Depression is a common comorbidity in multiple sclerosis (MS).
- Behavioral theory suggests environmental factors influence mood.
- Understanding predictors of depression in MS is crucial for effective treatment.
Purpose of the Study:
- To investigate the predictive relationship between physical disability, fatigue, and psychosocial dysfunction on depressed mood in MS patients.
- To explore the mediating role of recreational functioning in this relationship.
- To test the applicability of Lewinsohn's behavioral theory to MS.
Main Methods:
- Seventy-six MS patients participated in the study.
- Measures included the Sickness Impact Profile (SIP), Fatigue Impact Scale (FIS), and Chicago Multiscale Depression Inventory (CMDI) mood subscale.
- Structural equation modeling (SEM) was used to analyze the data.
Main Results:
- Physical disability and fatigue indirectly predicted depressed mood through their impact on recreational functioning.
- Fatigue also demonstrated a direct predictive effect on mood.
- Reduced engagement in recreational activities was linked to decrements in mood.
Conclusions:
- Depressed mood in MS patients is significantly influenced by physical disability and fatigue, mediated by recreational activity levels.
- Findings support the hypothesis that reduced participation in enjoyable activities contributes to depression in MS.
- Interventions aimed at enhancing engagement in adapted recreational activities may offer a viable strategy for managing depressed mood in individuals with MS.