Incidence of Inflammatory Bowel Disease in New Zealand Remains High, Findings in the Manawatū Region

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dc.citation.issue11
dc.citation.volume68
dc.contributor.authorMorton H
dc.contributor.authorCoad J
dc.contributor.authorPedley KC
dc.contributor.authorIrwin JR
dc.coverage.spatialUnited States
dc.date.accessioned2024-08-14T21:41:14Z
dc.date.available2024-08-14T21:41:14Z
dc.date.issued2023-11
dc.description.abstractBACKGROUND: New Zealand (NZ) has one of the world's highest rates of inflammatory bowel diseases (IBD), however available data are limited to southern, urban regions. AIMS: To determine the incidence and prevalence of IBD in the Manawatū region of NZ. METHODS: Patients in the Manawatū region, with a diagnosis of IBD made between 2011 and 2015 were identified. Demographic, diagnostic and disease data were collected, fulfilment of diagnostic criteria was assessed, and incidence rates were calculated. Comparison of disease phenotype and observed diagnostic criteria was made between diagnosis and 12-months following diagnosis. All resident patients with a diagnosis of IBD current on 5 March 2013 were identified, and prevalence rates were calculated. RESULTS: The mean annual age-standardised incidence rates of UC, CD, and IBD were 10.2, 17.0, and 27.2 per 100,000. IBD incidence was highest among those of European ethnicity (24.8 per 100,000), followed by Asian (1.4), and Māori (1.1). IBD incidence in the urban population was 34.0 per 100,000 (95% CI 24.1-46.0) compared to the rural population of 5.6 (95% CI 0.4-22.4). The age-standardised point prevalence of UC, CD, and IBD on 5 March 2013 was 157.7, 231.8, and 397.9 per 100,000, respectively. CONCLUSIONS: The incidence and prevalence of IBD in the Manawatū region are comparable to those reported in other Australasian studies. Incidence was lower in Māori, and in the rural population. Follow-up is required to identify any changes in incidence and phenotype, and whether rural residence remains protective.
dc.description.confidentialfalse
dc.edition.editionNovember 2023
dc.format.pagination4230-4242
dc.identifier.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/37659030
dc.identifier.citationMorton H, Coad J, Pedley KC, Irwin JR. (2023). Incidence of Inflammatory Bowel Disease in New Zealand Remains High, Findings in the Manawatū Region.. Dig Dis Sci. 68. 11. (pp. 4230-4242).
dc.identifier.doi10.1007/s10620-023-08070-5
dc.identifier.eissn1573-2568
dc.identifier.elements-typejournal-article
dc.identifier.issn0163-2116
dc.identifier.pii10.1007/s10620-023-08070-5
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/71300
dc.languageeng
dc.publisherSpringer Science+Business Media, LLC
dc.publisher.urihttps://link.springer.com/article/10.1007/s10620-023-08070-5
dc.relation.isPartOfDig Dis Sci
dc.rights(c) 2023 The Author/s
dc.rightsCC BY-NC 4.0
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.subjectCrohn’s disease
dc.subjectIncidence
dc.subjectPrevalence
dc.subjectUlcerative colitis
dc.subjectHumans
dc.subjectColitis, Ulcerative
dc.subjectCrohn Disease
dc.subjectIncidence
dc.subjectInflammatory Bowel Diseases
dc.subjectNew Zealand
dc.titleIncidence of Inflammatory Bowel Disease in New Zealand Remains High, Findings in the Manawatū Region
dc.typeJournal article
pubs.elements-id480258
pubs.organisational-groupOther
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