Abstract
Background
Cytomegalovirus (CMV) infection may complicate ulcerative colitis (UC) or Crohn’s disease (CD) hospitalizations. Studies examining this relationship are often single-center examining short time periods.
Aims
To quantify the prevalence of CMV and its impact on outcomes among UC and CD hospitalizations over time using nationwide administrative databases.
Methods
The National Inpatient Sample and Nationwide Readmissions Database were analyzed to calculate CMV prevalence per 1000 UC and CD hospitalizations between 1998 and 2014. Univariable and multivariable logistic and linear regression were used to assess CMV’s association with outcomes. Separate analyses examined effects from the introduction of anti-TNF therapy in UC in 2005, CD anatomic extent, and Clostridioides difficile infection.
Results
Among UC, from 1998 to 2014, the prevalence of CMV infection rose from 1.4 to 6.3 per 1000 UC hospitalizations (p < 0.001), although this increase was not statistically significant for the years 2006 to 2014 (p = 0.07). Among CD, prevalence rose from 0.3 to 1.8 per 1000 CD hospitalizations (p < 0.001) from 1998 to 2014. CMV was independently associated with increased inpatient mortality (UC: odds ratio (OR) 2.3, 95% confidence interval (CI) 1.2–4.5; CD: OR 4.6, CI 1.5–13.7), colectomy in UC (OR 2.5, CI 1.9–3.3), and higher length of stay and costs.
Conclusion
CMV infection’s prevalence among UC and CD hospitalizations is rising over time, but may have slowed after 2005 in UC. CMV is independently associated with increased inpatient mortality, length of stay, and hospital charges in UC and CD and with colectomy in UC.
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Hendler, S.A., Barber, G.E., Okafor, P.N. et al. Cytomegalovirus infection is associated with worse outcomes in inflammatory bowel disease hospitalizations nationwide. Int J Colorectal Dis 35, 897–903 (2020). https://doi.org/10.1007/s00384-020-03536-8
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DOI: https://doi.org/10.1007/s00384-020-03536-8