Predictors for hospitalization and outpatient visits in patients with inflammatory bowel disease: results from the Swiss Inflammatory Bowel Disease Cohort Study

Sulz, Michael C.; Siebert, Uwe; Arvandi, Marjan; Gothe, Raffaella M.; Wurm, Johannes; von Känel, Roland; Vavricka, Stephan R.; Meyenberger, Christa; Sagmeister, Markus; Müller, Christoph; Swiss IBD Cohort Study Group, (Müller C) (2013). Predictors for hospitalization and outpatient visits in patients with inflammatory bowel disease: results from the Swiss Inflammatory Bowel Disease Cohort Study. European journal of gastroenterology & hepatology, 25(7), pp. 790-797. Lippincott Williams & Wilkins 10.1097/MEG.0b013e32836019b9

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Patients with inflammatory bowel disease (IBD) have a high resource consumption, with considerable costs for the healthcare system. In a system with sparse resources, treatment is influenced not only by clinical judgement but also by resource consumption. We aimed to determine the resource consumption of IBD patients and to identify its significant predictors.


Data from the prospective Swiss Inflammatory Bowel Disease Cohort Study were analysed for the resource consumption endpoints hospitalization and outpatient consultations at enrolment [1187 patients; 41.1% ulcerative colitis (UC), 58.9% Crohn's disease (CD)] and at 1-year follow-up (794 patients). Predictors of interest were chosen through an expert panel and a review of the relevant literature. Logistic regressions were used for binary endpoints, and negative binomial regressions and zero-inflated Poisson regressions were used for count data.


For CD, fistula, use of biologics and disease activity were significant predictors for hospitalization days (all P-values <0.001); age, sex, steroid therapy and biologics were significant predictors for the number of outpatient visits (P=0.0368, 0.023, 0.0002, 0.0003, respectively). For UC, biologics, C-reactive protein, smoke quitters, age and sex were significantly predictive for hospitalization days (P=0.0167, 0.0003, 0.0003, 0.0076 and 0.0175 respectively); disease activity and immunosuppressive therapy predicted the number of outpatient visits (P=0.0009 and 0.0017, respectively). The results of multivariate regressions are shown in detail.


Several highly significant clinical predictors for resource consumption in IBD were identified that might be considered in medical decision-making. In terms of resource consumption and its predictors, CD and UC show a different behaviour.

Item Type:

Journal Article (Original Article)


04 Faculty of Medicine > Service Sector > Institute of Pathology
04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Neurology > Centre of Competence for Psychosomatic Medicine

UniBE Contributor:

von Känel, Roland, Müller, Christoph (B)


500 Science > 570 Life sciences; biology
600 Technology > 610 Medicine & health




Lippincott Williams & Wilkins




Andrea Arnold

Date Deposited:

02 Apr 2014 16:54

Last Modified:

05 Feb 2023 23:33

Publisher DOI:


PubMed ID:


Uncontrolled Keywords:

decision-making, inflammatory bowel disease, predictors, resource consumption




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