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Incidence and Outcome of Clostridium difficile Infection in Hospitalized Patients with Inflammatory Bowel Disease in
Neerav M Joshi1, Isobel H Marks1, Richard Crowson1
1Centre for Immunobiology, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary, University of London, UK.
Background And Aims:
Previous studies have reported that Clostridium difficile infection [CDI] is more common, and has a worse outcome, in patients with inflammatory bowel disease [IBD] than in those without. We have now reassessed the incidence and outcome of CDI in in-patients with and without IBD, and the outcomes of admissions for IBD patients with and without CDI.
Methods:
In-patients who had stool samples submitted for C. difficile testing [2007-2013] were collated. Two matched pools were generated: patients with IBD and CDI vs non-IBD patients with CDI [matched for age, sex and date] and patients with IBD and CDI vs IBD patients without CDI [matched for age and IBD type]. For each group, admission details, pre-admission and outcome data were compared.
Results:
Four per cent [1079/21035] of samples were positive for CDI; 5% [49] of these were from IBD in-patients. The incidence of CDI in IBD patients decreased from 8.7% in 2007/08 to 0.4% in 2012/13 [p < 0.0001]. Length of stay was shorter in IBD patients with CDI than in non-IBD CDI patients (hazard ratio [HR] 0.335 [0.218-0.513]) and was no different between IBD patients with and without CDI (HR 0.661 [0.413-1.06]). IBD patients were diagnosed with CDI earlier in their admission than non-IBD patients (HR 0.182 [0.093-0.246]). No differences in mortality were found.
Conclusions:
The incidence of CDI complicating IBD has fallen since 2007. CDI is no longer associated with worse short-term outcomes in patients with IBD than in those without. Patients with CDI and IBD have similar outcomes to those with IBD alone.
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