Patients with inflammatory bowel disease (IBD) are at increased risk for developing symptomatic Clostridium difficile infection (CDI) with worse clinical outcomes, including mortality, as compared with the general population. IBD-patients are also more susceptible to have recurrences of CDI. At present, predisposing factors for CDI in IBD-patients are poorly established. To characterize IBD-related CDI, a retrospective cohort from HUS register was gathered. Patient characteristics were compared with two control groups: IBD-patients with CDI and CDI-patients. According to our results, there was no statistically significant difference in mortality rate between IBD- and CDI-patients in contrary to previous reports. We detected corticosteroid consumption in IBD patients with CDI to be greater than in patient with IBD alone. It could be considered as a risk factor for CDI. Clarifying risk factors for CDI could lead to better understanding of optimal treatment for CDI in IBD patients.