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This study aims to investigate the relationship between early-life animal exposure and the risk of inflammatory bowel disease (IBD).

P1209Early-life animal exposure does not influence the risk of inflammatory bowel disease

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This study aims to investigate the relationship between early-life animal exposure and the risk of inflammatory bowel disease (IBD).
Conducted a population-based cohort study using Danish National Birth Cohort data.
Assessed prenatal and postnatal exposure to pets and farm animals via maternal reports.
Identified incident IBD cases through the Danish National Patient Registry.
Utilized Cox proportional hazards models to estimate adjusted hazard ratios.
No significant association found between prenatal exposure to pets (aHR 1.05) or farm animals (aHR 1.00) and IBD risk.
Sub-analyses for Crohn’s disease and ulcerative colitis also showed no significant associations.
Results were consistent across animal types, family history of IBD, and maternal IBD.

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Population-based cohort study shows no impact of early-life animal exposure on IBD risk, suggesting limited environmental influence.

Balmer et al. (2026) studied this question.

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