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Prevalence of antibiotic-resistant organisms in Canadian Hospitals. Comparison of point-prevalence survey results from 2010, 2012, and 2016

  • Philippe Martin (a1), Claire Nour Abou Chakra (a1), Victoria Williams (a2) (a3), Kathryn Bush (a4), Myrna Dyck (a5), Zahir Hirji (a6), Alex Kiss (a7), Oscar E. Larios (a8), Allison McGeer (a3) (a9), Christine Moore (a9), Karl Weiss (a10), Andrew E. Simor (a2) (a3) and Infection Prevention and Control Canada (a1) (a2) (a3) (a4) (a5) (a6) (a7) (a8) (a9) (a10)...

Abstract

Objective

Point-prevalence surveys for infection or colonization with methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant Enterococcus (VRE), extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae, carbapenem-resistant Enterobacteriaceae (CREs), and for Clostridium difficile infection (CDI) were conducted in Canadian hospitals in 2010 and 2012 to better understanding changes in the epidemiology of antimicrobial-resistant organisms (AROs), which is crucial for public health and care management.

Methods

A third survey of the same AROs in adult inpatients in Canadian hospitals with ≥50 beds was performed in February 2016. Data on participating hospitals and patient cases were obtained using standard criteria and case definitions. Associations between ARO prevalence and institutional characteristics were assessed using logistic regression models.

Results

In total, 160 hospitals from 9 of the 10 provinces with 35,018 adult inpatients participated in the survey. Median prevalence per 100 inpatients was 4.1 for MRSA, 0.8 for VRE, 1.1 for CDI, 0.8 for ESBLs, and 0 for CREs. No significant change occurred compared to 2012. CREs were reported from 24 hospitals (15%) in 2016 compared to 10 hospitals (7%) in 2012. Routine universal or targeted admission screening for VRE decreased from 94% in 2010 to 74% in 2016. Targeted screening for MRSA on admission was associated with a lower prevalence of MRSA infection. Large hospitals (>500 beds) had higher prevalences of CDI.

Conclusion

This survey provides national prevalence rates for AROs in Canadian hospitals. Changes in infection control and prevention policies might lead to changes in the epidemiology of AROs and our capacity to detect them.

Copyright

Corresponding author

Author for correspondence: Dr Philippe Martin, Department of Microbiology and Infectious Diseases–CHUS, 3001, 12ème Avenue Nord, Sherbrooke, Quebec, Canada J1H 5N4. E-mail: Philippe.Martin@USherbrooke.ca

Footnotes

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PREVIOUS PRESENTATION: Preliminary results of this study were presented at the annual meeting of the Infectious Diseases Society of America, 2016 IDWeek on October 28, 2016, in New Orleans, Louisiana (abstract no. 1491).

Cite this article: Martin P, et al. (2018). Prevalence of antibiotic-resistant organisms in Canadian Hospitals. Comparison of point-prevalence survey results from 2010, 2012, and 2016. Infection Control & Hospital Epidemiology 2019, 40, 53–59. doi: 10.1017/ice.2018.279

Footnotes

References

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