Crohn disease

Crohn's disease: A gastrointestinal disorder characterized by chronic inflammation involving all layers of the intestinal wall, noncaseating granulomas affecting the intestinal wall and regional lymph nodes, and transmural fibrosis. Crohn disease most commonly involves the terminal ileum; the colon is the second most common site of involvement.

Endpoint definition

Name K11_CROHN
Long name Crohn disease
Hospital Discharge registry ICD-10: K50, ICD-9: 555, ICD-8: 5630
Cause of Death registry ICD-10: K50, ICD-9: 555, ICD-8: 5630
Level in the ICD-hierarchy 3
First defined in version DF2
Latin name Morbus Crohn

Summary Statistics

Key figures

All Female Male
Number of individuals 2056 1156 900
Unadjusted prevalence (%) 0.95 0.94 0.96
Mean age at first event (years) 42.72 41.56 44.20
Case fatality at 5-years (%) 2.19 1.73 2.78

Longitudinal metrics

All Female Male
Median nb. of events per indiv. 7.0 7.0 7.0
Recurrence at 6 months (%) 67.70 68.69 66.44

Survival analyses between endpoints


before Crohn disease
after Crohn disease

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