> For the complete documentation index, see [llms.txt](https://docs.finngen.fi/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.finngen.fi/finngen-data-specifics/disease-specific-task-forces-and-interest-groups/inflammatory-bowel-disease-ibd-task-force/inflammatory-bowel-disease-ibd-combined-phenotype-table.md).

# Inflammatory bowel disease (IBD) combined phenotype table

FinnGen IBD Task Force phenotype table combines previously released disease phenotype variables into a same table: onset age ([Inflammatory bowel disease (IBD) time to operation & refined disease start data](https://app.gitbook.com/o/-LvQ-HmAdcdk2Pt49n05/s/-MhYL0UTLjqsuIdK0SSO/~/edit/~/changes/2053/finngen-data-specifics/disease-specific-task-forces-and-interest-groups/inflammatory-bowel-disease-ibd-task-force/inflammatory-bowel-disease-ibd-time-to-operation-and-refined-disease-start-data)), Montreal classifications ([Inflammatory bowel disease (IBD) modified montreal data](https://app.gitbook.com/o/-LvQ-HmAdcdk2Pt49n05/s/-MhYL0UTLjqsuIdK0SSO/~/edit/~/changes/2053/finngen-data-specifics/disease-specific-task-forces-and-interest-groups/inflammatory-bowel-disease-ibd-task-force/inflammatory-bowel-disease-ibd-modified-montreal-data)), and age of onset for 5 surgery endpoints ([Inflammatory bowel disease (IBD) time to operation & refined disease start data](https://app.gitbook.com/o/-LvQ-HmAdcdk2Pt49n05/s/-MhYL0UTLjqsuIdK0SSO/~/edit/~/changes/2053/finngen-data-specifics/disease-specific-task-forces-and-interest-groups/inflammatory-bowel-disease-ibd-task-force/inflammatory-bowel-disease-ibd-time-to-operation-and-refined-disease-start-data)), and in addition, includes new IBD-releated variables: age of onset for 10 extraintestinal manifestations and age at initiation and cessation for 17 IBD-related medications.

The data and documentation are available in Sandbox red library:

`/finngen/library-red/task_force_data/IBD/combined_phenotype_table/`