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Denominator Matters in Estimating Antimicrobial Use: A Comparison of Days Present and Patient Days

Published online by Cambridge University Press:  26 March 2018

Rebekah W. Moehring ,
Elizabeth S. Dodds Ashley ,
Xinru Ren ,
Yuliya Lokhnygina ,
Arthur W. Baker ,
Travis M. Jones ,
Sarah S. Lewis ,
Daniel J. Sexton ,
Deverick J. Anderson  and
the Centers for Disease Control and Prevention Epicenters Program
Rebekah W. Moehring*
Affiliation:
Duke Center for Antimicrobial Stewardship and Infection Prevention, Duke University, Durham, North Carolina
Elizabeth S. Dodds Ashley
Affiliation:
Duke Center for Antimicrobial Stewardship and Infection Prevention, Duke University, Durham, North Carolina
Xinru Ren
Affiliation:
Department of Biostatistics, Duke University, Durham, North Carolina
Yuliya Lokhnygina
Affiliation:
Department of Biostatistics, Duke University, Durham, North Carolina
Arthur W. Baker
Affiliation:
Duke Center for Antimicrobial Stewardship and Infection Prevention, Duke University, Durham, North Carolina
Travis M. Jones
Affiliation:
Duke Center for Antimicrobial Stewardship and Infection Prevention, Duke University, Durham, North Carolina
Sarah S. Lewis
Affiliation:
Duke Center for Antimicrobial Stewardship and Infection Prevention, Duke University, Durham, North Carolina
Daniel J. Sexton
Affiliation:
Duke Center for Antimicrobial Stewardship and Infection Prevention, Duke University, Durham, North Carolina
Deverick J. Anderson
Affiliation:
Duke Center for Antimicrobial Stewardship and Infection Prevention, Duke University, Durham, North Carolina
*
Address correspondence to Rebekah W. Moehring, MD, MPH, Duke University Medical Center, 315 Trent Drive, Durham, NC, 27705 (rebekah.moehring@duke.edu).
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Abstract

Patient days and days present were compared to directly measured person time to quantify how choice of different denominator metrics may affect antimicrobial use rates. Overall, days present were approximately one-third higher than patient days. This difference varied among hospitals and units and was influenced by short length of stay.

Infect Control Hosp Epidemiol 2018;39:612–615

Type
Concise Communications
Information
Infection Control & Hospital Epidemiology , Volume 39 , Issue 5 , May 2018 , pp. 612 - 615
Copyright
© 2018 by The Society for Healthcare Epidemiology of America. All rights reserved 

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References

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