The registry constitutes a large complemental database for the patient population in Germany. About one third of the IBD patients were not in clinical remission (CDAI ≥150/CAI >4) (CD: 45%; UC: 27%), although high rates of immunosuppressive drugs (CD: 47%; UC 26%) were administered. This study shows a large burden of active disease associated with an unexpectedly high (co)morbidity and high psychosocial impairments, indicating a reduced health state in IBD patients.

Colonic neoplasias are detected in about 20% of patients most of which are immediately removed by polypectomy at a low risk. Polypectomy of adenomas and low UICC stages in cancer patients during screening colonoscopy may be tools for fighting colorectal cancer mortality.

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