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A narrative systematic review and categorisation of outcomes in Inflammatory Bowel Disease to inform a Core Outcome Set for real-world evidence
Heterogeneity exists in reported outcomes and outcome measurement instruments (OMI) from observational studies. A core outcome set (COS) for observational and real-world evidence (RWE) in inflammatory bowel disease (IBD) will facilitate pooling large datasets. This systematic review, describes and classifies clinical and patient-reported outcomes, for COS development.