Does inflammatory bowel disease coexist with systemic lupus erythematosus?

Publication date: Available online 29 July 2016
Source:Autoimmunity Reviews
Author(s): Dana Ben-Ami Shor, Shani Dahan, Doron Comaneshter, Arnon D. Cohen, Howard Amital
BackgroundThe data regarding the association between inflammatory bowel disease (IBD) and systemic lupus erythematosus (SLE) is mostly composed of case reports and case series indicating an infrequent association.ObjectivesTo investigate the association between IBD and SLE.MethodsPatients with SLE were compared with age- and sex-matched controls regarding the prevalence of ulcerative colitis (UC) and Crohn's disease (CD) in a case–control study. Chi-square and t-tests were used for univariate analysis and a logistic regression model was used for multivariate analysis. The study was performed utilizing the medical database of Clalit Health Services.ResultsThe study included 5018 patients with SLE and 25,090 age- and sex-matched controls. The prevalence of UC was significantly higher in patients with SLE than in controls in a univariate analysis (0.4% and 0.2%, respectively; P<0.017). However, in a multivariate logistic regression model SLE was not associated with UC (OR 1.67, 95% CI 0.99–2.815, p<0.052). The prevalence of CD was higher in patients with SLE than in controls in a univariate analysis (0.7% and 0.3%, respectively; p<0.001). A multivariate logistic regression model confirmed this finding and corroborated that SLE was associated with comorbid CD (OR 2.23, 95% CI 1.46–3.4, p<0.001).ConclusionsPatients with SLE have a greater prevalence of CD than matched controls. The distinction of IBD from SLE gastrointestinal involvement can be challenging as clinical manifestations, laboratory tests, and radiographic findings may appear similar between the two diseases. Therefore, physicians treating patients with rather IBD or SLE should consider this potential association.



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