Course and predictors of somatic symptom disorder in irritable bowel syndrome and ulcerative colitis: A longitudinal analysis from the SOMA.GUT-RCT

Structured interview-based SSD was prevalent in patients with UC or IBS at baseline and declined over time. Psychosocial rather than disease-related variables predicted SSD, highlighting modifiable targets for early detection and tailored interventions. Results should be interpreted cautiously due to the interventional study context, which may have influenced both baseline SSD frequency and change over time.