Global Prevalence and Bidirectional Association Between Psoriasis and Inflammatory Bowel Disease—A Systematic Review and Meta-analysis

Background and Aims Epidemiological studies have established an association between psoriasis and inflammatory bowel disease [IBD], i.e. ulcerative colitis [UC] and Crohn’s disease [CD], but results are inconsistent. The aim of this study was therefore to quantify the prevalences and association between IBD and psoriasis. Methods PubMed, Web of Science, and EMBASE were searched from database inception through April 2018 for studies reporting...