{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,10]],"date-time":"2026-03-10T20:46:37Z","timestamp":1773175597374,"version":"3.50.1"},"reference-count":0,"publisher":"Pasifika Medical Association Group","issue":"1631","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["NZMJ"],"abstract":"<jats:p>aim: The inflammatory bowel disease severity index (IBD-DSI) aims to describe inflammatory bowel disease (IBD) severity over the duration of disease. We aimed to correlate the IBD-DSI with a patient-completed disease severity score (PCDSS). We also aimed to investigate whether individual factors such as psychological measures or clinical characteristics moderate this correlation.\nmethods: This multicentre trial involved gastroenterologists completing the IBD-DSI and Harvey-Bradshaw Index or Simple Clinical Colitis Activity Index for each participant while patients completed a self-reported IBD severity score and psychological questionnaires. The excess severity score (ESS) was calculated by subtracting the IBD-DSI from the PCDSS.\nresults: One hundred and sixty-four patients with IBD participated (98.2% response rate; average age 41.2 years; 105 [62.9%] female; 100 [59.9%] Crohn\u2019s disease) and 164 IBD-DSI were completed. The IBD-DSI and PCDSS were positively correlated (r=0.44, r2=0.19, p&lt;0.001) although the mean ESS was 29.0 (23.2). The relationship between the scales is reflected in the equation: PCDSS=39.53+0.59*IBD-DSI. There were larger discrepancies at the lower end of IBD-DSI. After controlling for IBD-DSI, previous colectomy (p=0.03), any IBD or bowel-related surgery (p=0.01) and ulcerative colitis extent of disease (p=0.049) were associated with ESS while 5-aminosalicylic acid use\n(p=0.01) was negatively associated with ESS.\nconclusions: IBD-DSI and PCDSS are significantly positively associated with each other and with larger discrepancies at the lower end of the IBD-DSI. Possible contributing factors to the discrepancy are floor effects, regression to the mean and patients putting different implicit weights on particular factors than the IBD-DSI does.<\/jats:p>","DOI":"10.26635\/6965.7229","type":"journal-article","created":{"date-parts":[[2026,3,10]],"date-time":"2026-03-10T02:17:14Z","timestamp":1773109034000},"page":"76-92","source":"Crossref","is-referenced-by-count":0,"title":["Correlation between patient-determined inflammatory bowel disease severity and the inflammatory bowel disease severity index"],"prefix":"10.26635","volume":"139","author":[{"given":"Andrew","family":"McCombie","sequence":"first","affiliation":[{"name":"Department of General Surgery, Health New Zealand \u2013 Te Whatu Ora, Christchurch Hospital, Christchurch, New Zealand."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Corey","family":"Siegel","sequence":"additional","affiliation":[{"name":"Center for Digestive Health, Dartmouth Hitchcock Medical Center, Lebanon, New Hampshire, United States of America."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stephen","family":"Hanauer","sequence":"additional","affiliation":[{"name":"Northwestern Medicine, Chicago, Illinois, United States of America."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Timothy","family":"McAuliffe","sequence":"additional","affiliation":[{"name":"Geisel School of Medicine at Dartmouth, Hanover, New Hampshire, United States of America."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jessica","family":"Salwen-Deremer","sequence":"additional","affiliation":[{"name":"Department of Psychiatry & Center for Digestive Health, Dartmouth Hitchcock Medical Center, Lebanon, New Hampshire, United States of America."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hannah","family":"Hughes","sequence":"additional","affiliation":[{"name":"University of Canterbury, Christchurch, New Zealand."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Richard","family":"Gearry","sequence":"additional","affiliation":[{"name":"Health New Zealand \u2013 Te Whatu Ora Waitaha, Christchurch, New Zealand."}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"11177","published-online":{"date-parts":[[2026,3,13]]},"container-title":["New Zealand Medical Journal"],"original-title":[],"deposited":{"date-parts":[[2026,3,10]],"date-time":"2026-03-10T02:17:22Z","timestamp":1773109042000},"score":1,"resource":{"primary":{"URL":"https:\/\/nzmj.org.nz\/journal\/vol-139-no-1631\/correlation-between-patient-determined-inflammatory-bowel-disease-severity-and-the-inflammatory-bowel-disease-severity-index"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,3,13]]},"references-count":0,"journal-issue":{"issue":"1631","published-online":{"date-parts":[[2026,3,13]]}},"URL":"https:\/\/doi.org\/10.26635\/6965.7229","relation":{},"ISSN":["1175-8716"],"issn-type":[{"value":"1175-8716","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,3,13]]}}}