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Ulcerative colitis (strict definition, require KELA)


ulcerative colitis: An inflammatory bowel disease involving the mucosal surface of the large intestine and rectum. It may present with an acute or slow onset and follows an intermittent or continuous course. Signs and symptoms include abdominal pain, diarrhea, fever, weight loss, and intestinal hemorrhage.

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Endpoint definition

Endpoint definition steps


Phenotype data


1. Apply sex-specific rule



2. Check conditions

  • K11_KELAUC

3. Check pre-conditions, main-only, mode, registry filters

Registry filters:

  • Hospital discharge: ICD-10 K51
  • Hospital discharge: ICD-9 556
  • Hospital discharge: ICD-8 5631|569
  • Hospital discharge: excluded ICD-9 5564A
  • Cause of death: ICD-10 K51
  • Cause of death: ICD-9 556
  • Cause of death: ICD-8 5631|569
  • Cause of death: excluded ICD-9 5564A

2 out of 7 registries used, show all original rules.


4. Check minimum number of events



5. Include endpoints



6. Filter based on genotype QC (FinnGen only)


Control definitions (FinnGen only)

Control exclude K11_UC_STRICT_PSC
Control conditions not K11_KELAUC

Extra metadata

Level in the ICD hierarchy C
First used in FinnGen datafreeze DF3
Parent code in ICD-10 K50-K52
Name in latin Colitis ulcerosa

Case counts by codes

FinnGen case counts by registry codes:

generic upset plot

Upset plot

Full data table

Summary Statistics


This endpoint is excluded from FinRegistry analyses (omitted endpoint).


Key figures

All Female Male
Number of individuals 6705 3382 3323
Unadjusted period prevalence (%) 1.50 1.33 1.67
Median age at first event (years) 38.74 35.41 42.13


Age distribution of first events


Year distribution of first events


Cumulative Incidence Function

Not a core endpoint, no data to show.

Mortality – FinRegistry

This endpoint is excluded from FinRegistry analyses (omitted endpoint).

Relationships between endpoints

Index endpoint: K11_UC_STRICT – Ulcerative colitis (strict definition, require KELA)

GWS hits: -

This endpoint is excluded from FinRegistry analyses (omitted endpoint).