Cure8

Why This Matters

Respiratory diseases (COPD, asthma, bronchiectasis) and IBD appear to occur together more often than expected. If you have IBD, especially Crohn’s, you may be at higher risk for some obstructive lung diseases, and people with these lung diseases may have higher risk of developing IBD.

Who Should Pay Attention

Clinicians managing IBD or respiratory disease, adult patients with Crohn’s disease or ulcerative colitis, and researchers studying extraintestinal manifestations or comorbidities of IBD.

Study Snapshot

Story typeResearch paper
Evidence typeSystematic review
Source depthJournal abstract

What To Know

A systematic review and meta-analysis pooled 30 observational studies to examine two-way links between obstructive lung diseases (OLD: COPD, asthma, bronchiectasis) and inflammatory bowel disease (IBD: Crohn’s disease and ulcerative colitis).

The authors report that IBD is associated with higher risk of later COPD and asthma, and that COPD and asthma are associated with higher risks of later IBD — associations were generally stronger and more consistent for Crohn’s disease than for ulcerative colitis.

The evidence comes from observational cohort, case-control, and cross-sectional studies with varying designs and heterogeneity; the review used standard meta-analytic methods and quality assessment (Newcastle–Ottawa Scale). For bronchiectasis the pooled estimate was imprecise and authors advise caution.

The paper suggests clinicians be attentive to respiratory symptoms in people with IBD and consider appropriate assessment for earlier identification and management. This brief is grounded in the article abstract and pooled-results summary provided by the journal; it does not represent a review of the full study data beyond that abstract.

Keep In Mind

This is a systematic review and meta-analysis of observational studies, which can identify associations but cannot prove causation. The included studies showed heterogeneity by disease subtype and age; bronchiectasis estimates were imprecise. Recommendations for screening or management should follow clinical judgment and guideline guidance.

Source Details

Review the original publication for the complete reporting, methods, and context.

Read Original Source
Systematic review Evidence type derived from source or registry metadata.
PublicationFrontiers in immunology
AuthorsDing C, Wang Y, Sun T +1 more
Study typeMeta Analysis, systematic review, journal article
Indexed viaEurope PMC
Source typeResearch paper
PublishedJun 30, 2026, 12:00 AM
Content availableJournal abstract

This Cure8 brief is based on source text from the linked article. Cure8 is informational only and is not a substitute for professional medical advice, diagnosis, or treatment.

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