Inflammatory bowel disease


inflammatory bowel disease: A spectrum of small and large bowel inflammatory diseases of unknown etiology. It includes Crohn's disease, ulcerative colitis, and colitis of indeterminate type.

Endpoint definition

FinnGen phenotype data

356077 individuals

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Apply sex-specific rule None


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Check conditions None


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Filter registries None


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Check pre-conditions, main-only, mode, ICD version None


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Check minimum number of events None


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Include endpoints


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Extra metadata

Level in the ICD hierarchy C
First used in FinnGen datafreeze DF2

Similar endpoints

List of similar endpoints to Inflammatory bowel disease based on the number of shared cases.

Venn diagram with an highlighted set fully inside another set Broader endpoints:

Venn diagram with a set fully inside an highlighted set Narrower endpoints:

Show all endpoint correlations

Summary Statistics

Key figures

All Female Male
Number of individuals 10311 5476 4835
Unadjusted prevalence (%) 2.90 2.76 3.07
Mean age at first event (years) 42.03 40.02 44.30


Follow-up Absolute risk HR [95% CI] p N
1998–2019 0.03 1.52 [1.07, 2.15] 1.8e-2 801
15 years 0.01 1.06 [0.81, 1.38] 6.9e-1 322
5 years 0.00 2.17 [1.73, 2.73] 3.0e-11 180
1 year 0.00 5.64 [4.30, 7.40] 1.1e-35 88

Age distribution of first events

Year distribution of first events

Cumulative Incidence


Index endpoint: K11_IBD – Inflammatory bowel disease
GWS hits:

Survival analyses between endpoints


before Inflammatory bowel disease
after Inflammatory bowel disease

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Drugs most likely to be purchased after Inflammatory bowel disease