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We conducted a retrospective, multicentre cohort study from the binational Crohns Colitis Care registry, highlighting a high prevalence of obesity and overweight in our cohort where increasing body mass index was associated with older age and cardiometabolic comorbidities including diabetes and metabolic dysfunction associated steatotic liver disease.<\/jats:p>","DOI":"10.1111\/imj.70454","type":"journal-article","created":{"date-parts":[[2026,5,5]],"date-time":"2026-05-05T21:25:07Z","timestamp":1778016307000},"page":"1429-1432","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["The trend of obesity and inflammatory bowel disease in Australia and New Zealand: a bi\u2010nation cohort study"],"prefix":"10.1111","volume":"56","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0892-0680","authenticated-orcid":false,"given":"Patricia","family":"Kaazan","sequence":"first","affiliation":[{"name":"Adelaide Medical School, Faculty of Health and Medical Sciences University of Adelaide  Adelaide South Australia Australia"},{"name":"Flinders Medical Centre  Adelaide South Australia Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5024-1000","authenticated-orcid":false,"given":"Warren","family":"Seow","sequence":"additional","affiliation":[{"name":"Adelaide Medical School, Faculty of Health and Medical Sciences University of Adelaide  Adelaide South Australia Australia"},{"name":"Flinders Medical Centre  Adelaide South Australia Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bill","family":"Wilson","sequence":"additional","affiliation":[{"name":"Adelaide Medical School, Faculty of Health and Medical Sciences University of Adelaide  Adelaide South Australia Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Susan J","family":"Connor","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology Liverpool Hospital  Sydney New South Wales Australia"},{"name":"Crohns Colitis Cure  Sydney New South Wales Australia"},{"name":"University of New South Wales, South West Sydney Campus  Sydney New South Wales Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7960-2650","authenticated-orcid":false,"given":"Jane M","family":"Andrews","sequence":"additional","affiliation":[{"name":"Adelaide Medical School, Faculty of Health and Medical Sciences University of Adelaide  Adelaide South Australia Australia"},{"name":"Crohns Colitis Cure  Sydney New South Wales Australia"},{"name":"Department of Gastroenterology Royal Adelaide Hospital  Adelaide South Australia Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,5,5]]},"reference":[{"key":"e_1_2_5_2_1","unstructured":"CCA.IBD state of the nation.2025. 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