Increased prevalence of and associated mortality with methicillin-resistant Staphylococcus aureus among hospitalized

Geoffrey C Nguyen1, Harshna Patel, Rachel Y Chong

  • 1Mount Sinai Hospital IBD Centre, Department of Medicine, University of Toronto Faculty of Medicine, Toronto, Ontario, Canada. geoff.nguyen@utoronto.ca

Abstract

Insights

Hospitalized patients with inflammatory bowel disease (IBD) face a higher risk of methicillin-resistant Staphylococcus aureus (MRSA) infection. This increased risk is linked to greater mortality, highlighting the need for infection prevention strategies.

Area of Science:

  • Infectious Diseases
  • Gastroenterology
  • Hospital Epidemiology

Background:

  • Methicillin-resistant Staphylococcus aureus (MRSA) is a growing concern in hospital settings.
  • The specific impact of MRSA on hospitalized patients with inflammatory bowel disease (IBD) remains largely unknown.

Purpose of the Study:

  • To investigate the prevalence and outcomes of MRSA infections in hospitalized IBD patients.
  • To compare MRSA risk and mortality in IBD patients versus non-IBD gastrointestinal and general medical inpatients.

Main Methods:

  • Utilized the Nationwide Inpatient Sample (NIS) database from 1998-2004.
  • Identified 116,842 IBD admissions and compared MRSA prevalence and in-hospital mortality.
  • Adjusted for confounders including length of stay and comorbidities.

Main Results:

  • MRSA prevalence significantly increased over the study period.
  • IBD patients had a higher risk of MRSA compared to non-IBD GI and general medical patients.
  • MRSA infection was associated with a sevenfold increase in mortality among IBD patients, with catheter-related infections being more common.

Conclusions:

  • Hospitalized IBD patients are at an elevated risk for MRSA infections.
  • MRSA is associated with increased mortality in the IBD population.
  • Emphasizes the critical need for nosocomial infection prevention and reducing hospitalization length for IBD patients.

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