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Lookup NU author(s): Emerita Professor Elaine McCollORCiD,
Professor Roger Barton,
Dr Peter James,
Dr Mark Welfare
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Background: Establishing predictors of quality of life (QoL) in individuals with inflammatory bowel disease could help to identify those patients who are most likely to experience poor QoL and to target therapeutic interventions appropriately. We aimed to investigate how disease-specific QoL depends on demographic, disease-related, and physiological markers of disease activity, cognitive representations of illness, and perceived general health status. Methods: A total of 111 individuals completed the Inflammatory Bowel Disease Questionnaire (IBDQ), the Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36), and the Illness Perception Questionnaire (IPQ). The extent of disease was determined from records, and disease activity was determined by a symptom index. Bivariate analyses and multivariate regression models were used to identify predictors of disease-specific QoL. Results: Bivariate analyses showed that symptom-related disease activity, elements of illness representation measured by the IPQ, and elements of physical and mental health measured by the SF-36 were the only variables that were strongly or moderately correlated with disease-specific QoL. Multivariate regression modeling showed that disease activity was the major explanatory variable for each of the 4 domains and for the total score on the IBDQ. Conclusion: This study highlights the strong relationship between individuals' symptoms and all domains of their health-related QoL, but shows little association with age, gender, physiological markers of disease activity, or anatomic disease extent. Perceptions of the condition were relatively weak predictors of self-reported QoL. The best strategy for improving QoL among individuals with ulcerative colitis may be to find ways to reduce their symptoms.
Author(s): Han SW, McColl E, Barton JR, James P, Steen AN, Welfare MR
Publication type: Article
Publication status: Published
Journal: Inflammatory Bowel Diseases
ISSN (print): 1078-0998
ISSN (electronic): 1536-4844
Publisher: John Wiley & Sons, Inc.
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