Cited by 157Inflammatory Bowel DiseaseOcular Diseases and Behçet’s SyndromeMicroscopic Colitis

The incidence of inflammatory bowel disease in Denmark 1980–2013: a nationwide cohort study

Lophaven, S. N., Lynge, E., Burisch, J.·2017·Alimentary Pharmacology & Therapeutics

Abstract

Summary: Background: Globally, the incidence rates of inflammatory bowel disease (IBD) are increasing; however, data from high‐incidence areas are conflicting. Previous studies in Denmark have assessed incidence rates of Crohn's disease (CD) and ulcerative colitis (UC) using short observation periods. Aim: To investigate trends in IBD incidence in Denmark over a thirty‐year period using nationwide data. Methods: Patients diagnosed with CD or UC in Denmark between 1980 and 2013 were identified in the Danish National Patient Registry (NPR) and included in a nationwide cohort. Incidence rates estimated using different numbers of National Patient Registry records (≥1, 2, 3 or 4) required for case definition were compared. Results: From 1980 to 2013 the incidence of CD increased from 5.2 (95% CI: 5.0–5.4) per 100 000 to 9.1 (95% CI: 8.7–9.5) per 100 000 and the incidence of UC increased from 10.7 (95% CI: 10.4–11.0) per 100 000 to 18.6 (95% CI: 18.0–19.2) per 100 000. The increased incidence in CD and UC was independent of gender. The annual increase in incidence rate was greatest in patients aged <15 years for CD and those older than 15 years for UC. For both CD and UC the incidence rates for females were significantly higher than for males. The number of registry records chosen to define IBD cases greatly influenced incidence estimates. Conclusions: The incidence of IBD in Denmark continues to increase and is among the highest in the world. Using at ≥2 records of IBD diagnosis in the Danish National Patient Registry will result in more valid incidence estimates.

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Crossref · 10.1111/apt.13971

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  • Incidence continues to increase in certain countries including New Zealand and some European regions such as Spain and Denmark.

    “Furthermore, incidence continues to increase in certain countries including New Zealand40 and some countries/regions in Europe, such as Spain41 and Denmark42.”

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Authors
Lophaven, S. N., Lynge, E., & Burisch, J.
Affiliations
  • University of Copenhagen (DK)
  • Zealand University Hospital (DK)
Corresponding author
Burisch, J.
Venue
Alimentary Pharmacology & Therapeutics
Publisher
Wiley
Published
2017-02-23
Volume
45
Issue
7
Pages
961-972
ISSN
  • 0269-2813 (ISSN-L)
  • 1365-2036
OpenAlex
W2590191133
Cited by
157
References
52
Citations by year
2026: 9 · 2025: 11 · 2024: 17 · 2023: 18 · 2022: 18 · 2021: 18 · 2020: 24 · 2019: 20 · 2018: 15 · 2017: 6
FWCI
11.77
Type
journal article
Language
en
Open access
closed
Locations
  • Alimentary Pharmacology & Therapeutics (publishedVersion)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Inflammatory Bowel Disease
  • Health Sciences › Medicine › Ophthalmology › Ocular Diseases and Behçet’s Syndrome
  • Health Sciences › Medicine › Epidemiology › Microscopic Colitis
Keywords
inflammatory bowel disease, Crohn's disease, ulcerative colitis, incidence trends, incidence rates, Denmark, sex differences, age differences, case definition, Danish National Patient Registry
MeSH terms
Adolescent, Adult, Aged, Colitis, Ulcerative, Crohn Disease, Denmark, Female, Humans, Male, Middle Aged, Registries, Cohort Studies, Incidence, Young Adult

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