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Feasibility and Value of Developing a Regional Antibiogram for Community Hospitals

Published online by Cambridge University Press:  23 April 2018

Christopher J. Hostler
Affiliation:
Duke Center for Antimicrobial Stewardship and Infection Prevention, Durham, North Carolina Duke University School of Medicine, Durham, North Carolina Durham VA Health Care System, Durham, North Carolina
Rebekah W. Moehring
Affiliation:
Duke Center for Antimicrobial Stewardship and Infection Prevention, Durham, North Carolina Duke University School of Medicine, Durham, North Carolina
Elizabeth S. Dodds Ashley
Affiliation:
Duke Center for Antimicrobial Stewardship and Infection Prevention, Durham, North Carolina Duke University School of Medicine, Durham, North Carolina
Melissa Johnson
Affiliation:
Duke Center for Antimicrobial Stewardship and Infection Prevention, Durham, North Carolina Duke University School of Medicine, Durham, North Carolina
Angelina Davis
Affiliation:
Duke Center for Antimicrobial Stewardship and Infection Prevention, Durham, North Carolina Duke University School of Medicine, Durham, North Carolina
Sarah S. Lewis
Affiliation:
Duke Center for Antimicrobial Stewardship and Infection Prevention, Durham, North Carolina Duke University School of Medicine, Durham, North Carolina
Daniel J. Sexton
Affiliation:
Duke Center for Antimicrobial Stewardship and Infection Prevention, Durham, North Carolina Duke University School of Medicine, Durham, North Carolina
Deverick J. Anderson
Affiliation:
Duke Center for Antimicrobial Stewardship and Infection Prevention, Durham, North Carolina Duke University School of Medicine, Durham, North Carolina
Corresponding

Abstract

OBJECTIVE

To determine the feasibility and value of developing a regional antibiogram for community hospitals.

DESIGN

Multicenter retrospective analysis of antibiograms.

SETTING AND PARTICIPANTS

A total of 20 community hospitals in central and eastern North Carolina and south central Virginia participated in this study.

METHODS

We combined antibiogram data from participating hospitals for 13 clinically relevant gram-negative pathogen–antibiotic combinations. From this combined antibiogram, we developed a regional antibiogram based on the mean susceptibilities of the combined data.

RESULTS

We combined a total of 69,778 bacterial isolates across 13 clinically relevant gram-negative pathogen–antibiotic combinations (median for each combination, 1100; range, 174–27,428). Across all pathogen–antibiotic combinations, 69% of local susceptibility rates fell within 1 SD of the regional mean susceptibility rate, and 97% of local susceptibilities fell within 2 SD of the regional mean susceptibility rate. No individual hospital had >1 pathogen–antibiotic combination with a local susceptibility rate >2 SD of the regional mean susceptibility rate. All hospitals’ local susceptibility rates were within 2 SD of the regional mean susceptibility rate for low-prevalence pathogens (<500 isolates cumulative for the region).

CONCLUSIONS

Small community hospitals frequently cannot develop an accurate antibiogram due to a paucity of local data. A regional antibiogram is likely to provide clinically useful information to community hospitals for low-prevalence pathogens.

Infect Control Hosp Epidemiol 2018;39:718–722

Type
Original Articles
Copyright
© 2018 by The Society for Healthcare Epidemiology of America. All rights reserved 

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Footnotes

PREVIOUS PRESENTATION. This work was presented in the Posters in the Park and HAI: Epidemiologic Methods Poster sessions during IDWeek 2016 on October 26 and October 28, respectively, in New Orleans, Louisiana (poster #1359).

References

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