Abstract
Purpose
The symptoms of multiple sclerosis (MS) often cause physical and mental dysfunction, which interferes with a person’s ability to participate in life’s roles. Identification of the strength of the contributors to participation would help prioritize intervention approaches for its improvement. The objective of this study was to estimate the extent to which pain and other MS-related symptoms, physical function, psychological variables, and individual characteristics predict participation in people with MS.
Methods
This was a cross-sectional study. Study sample was a center-stratified random sample of 188 persons with MS. Subjects completed a battery of self-report and performance-based measures that assessed participation and domains affecting participation. To model the relationships among variables, a conceptual framework based on the Wilson and Cleary model was tested. Structural equation modeling aimed at identification of the predictors of participation within the hypothesized theoretical model.
Results
Fatigue (β = 0.63, p < 0.0001), physical function (β = 0.37, p < 0.0001), and psychological variables (β = 0.15, p = 0.04) were found to be as significant direct predictors of participation. Pain (β = 0.4, p < 0.0001) and age (β = 0.12, p < 0.0001) were significant indirect predictors through fatigue and physical function, respectively. Together these effects explained 88 % of the variance of participation, 35 % of the variance in psychological variables, and 29 % of the variance in physical function.
Conclusion
Fatigue, physical function, pain, and psychological variables were most important contributors for participation in persons with MS.
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Acknowledgments
Shahrbanian was a recipient of the Canadian Institutes of Health Research Award (Grant No. 218665). Authors also acknowledge the contribution of Ayse Kuspinar, Shang Yuan Teng, and Elaine Roger, who recruited patients from MNH, CNRS, and CHUM, respectively.
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Study protocol and procedures were approved by the ethics committee of each participating hospital, and informed consent was obtained and signed by all subjects on the day of testing.
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Shahrbanian, S., Duquette, P., Ahmed, S. et al. Pain acts through fatigue to affect participation in individuals with multiple sclerosis. Qual Life Res 25, 477–491 (2016). https://doi.org/10.1007/s11136-015-1098-0
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DOI: https://doi.org/10.1007/s11136-015-1098-0