Systematic Review and Meta-analysis on the Incidence, Prevalence and Determinants of Discomfort in Inflammatory Bowel Disease

Abstract Background The symptom burden in inflammatory bowel disease (IBD) has a significant negative impact on the health-related quality of life (HRQOL). Patients with IBD report physical, psychological and social discomfort even during remission. Aim To synthesize the best available evidence to determine the worldwide incidence, prevalence and determinants of discomfort in adults with inflammatory bowel disease (IBD). Methods Following PRISMA recommendations, we searched the Medline, CINAHL, PsycInfo, Embase, Cochrane, Campbell and JBI Evidence Synthesis databases for studies on either incidence or prevalence of discomfort in English until January 2021. Data were extracted using the Joanna Briggs Institute’s standardized extraction tools. Data that directly reported or could be used to calculate the incidence and prevalence of discomfort were extracted. Ten studies were eligible for inclusion in this review. Overall, the methodological quality of the included studies was considered moderate. Data measuring the incidence of discomfort in 6 out of 10 identified studies using the same measurement tool (EQ-5D) were pooled in a meta-analysis. Additional results have been presented in a narrative form, including tables. Results There is no standardized definition or tool utilized to describe or measure discomfort in IBD. Synthesized findings demonstrate that discomfort is prevalent among adults living with IBD. Determinants of discomfort included health literacy, disease activity, hospitalization/surgery, age and gender, delayed diagnosis, local practice standards and quality of IBD care. Conclusions More research is needed to identify the impact of discomfort on health-related outcomes for people with IBD and consequently appraise discomfort interventions for their efficacy.