Longitudinal follow‐up of a novel classification system for irritable bowel syndrome: natural history and prognostic value

Summary Background Conventionally, irritable bowel syndrome (IBS) is subgrouped using predominant stool form, yet it is a complex disorder, with multiple biopsychosocial contributors. We previously derived and validated a latent class model subgrouping people with IBS into seven clusters based on gastrointestinal and extraintestinal symptoms and psychological profile. Aims To conduct longitudinal follow‐up examining the natural history and...