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Cited by 80Inflammatory Bowel DiseaseOcular Diseases and Behçet’s SyndromeAutoimmune and Inflammatory Disorders

Rising Incidence of Inflammatory Bowel Disease in Canterbury, New Zealand

Su, Heidi Y., Gupta, Vikesh, Day, Andrew S., Gearry, Richard B.·2016·Inflammatory Bowel Diseases
DOI 10.1097/mib.0000000000000829
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Abstract

BACKGROUND: A population-based study of inflammatory bowel disease (IBD) in the Canterbury province of New Zealand demonstrated an incidence of Crohn's disease (CD) of 16.5 per 100,000 population in 2004, along with a high rate of IBD overall. At the time, this was one of the highest rates of CD in the world. The current study aimed to ascertain the incidence of IBD in the same area 10 years later. METHODS: All patients diagnosed with IBD in 2014 within the Canterbury region were identified and characterized. Diagnosis and disease classification were ascertained using standard accepted criteria. Projected population data for age and gender were used to calculate incidence rates for IBD overall and for CD, ulcerative colitis (UC), and inflammatory bowel disease-unclassified (IBDU). RESULTS: During the 2014 years, 205 patients were diagnosed with IBD in Canterbury. This group comprised 134 patients with CD, 69 with UC, and 2 with IBDU. The age-standardized incidence of IBD, CD, UC, and IBDU was 39.5, 26.4, 12.6, and 0.17 per 100,000, respectively. Disease location of CD patients was evenly distributed (ileal 29%, colonic 35%, and ileocolonic 32%). Similarly, patients with UC had even distribution of proctitis, left-sided, and extensive disease. CONCLUSIONS: This study demonstrates a substantial increase in the incidence of IBD in this geographically well-defined area. Overall, incidence rates were 1.6-fold greater than when assessed 10 years earlier. The reasons contributing to these continued increases remain unclear. However, further increases in rates of IBD indicate growing health system demands in the future.

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  • The Ceiling Incidence Range in the Western world is 23.8-29.3 per 100,000 for Crohn's disease and 23.1-57.9 per 100,000 for ulcerative colitis.

    “For Crohn’s disease, the Ceiling Incidence Range is in the range 23.8–29.3 per 100,000 (refs4,40,43), and for ulcerative colitis, it is in the range 23.1–57.9 per 100,000 (refs4,43,44).”

    From The four epidemiological stages in the global evolution of inflammatory bowel disease (2021) · cites this paper as [40]

  • 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.”

    From The four epidemiological stages in the global evolution of inflammatory bowel disease (2021) · cites this paper as [40]

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Authors
Su, H. Y., Gupta, V., Day, A. S., & Gearry, R. B.
Affiliations
  • Christchurch Hospital (NZ)
  • University of Otago (NZ)
ORCID
Venue
Inflammatory Bowel Diseases
Publisher
Oxford University Press (OUP)
Published
2016-09
Volume
22
Issue
9
Pages
2238-2244
ISSN
1078-0998 (ISSN-L)
DOI
10.1097/mib.0000000000000829
OpenAlex
W2341291868
Cited by
80
References
36
Citations by year
2026: 2 · 2025: 11 · 2024: 14 · 2023: 10 · 2022: 8 · 2021: 5 · 2020: 9 · 2019: 7 · 2018: 3 · 2017: 11
FWCI
5.65
Type
journal article
Language
en
Open access
closed
Locations
  • Inflammatory Bowel Diseases (publishedVersion)
  • PubMed (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 › Autoimmune and Inflammatory Disorders
Keywords
inflammatory bowel disease, Crohn's disease
MeSH terms
Adolescent, Adult, Aged, Aged, 80 and over, Child, Child, Preschool, Colitis, Ulcerative, Crohn Disease, Female, Humans, Infant, Infant, Newborn, Male, Middle Aged, New Zealand, Phenotype, Prospective Studies, Incidence, Age Distribution, Sex Distribution, Young Adult

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