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Clin Infect Dis. 2018 Aug 1;67(4):525-532. doi: 10.1093/cid/ciy155.

Impact of Implementing Antibiotic Stewardship Programs in 15 Small Hospitals: A Cluster-Randomized Intervention.

Author information

1
Division of Clinical Epidemiology and Infectious Diseases, Intermountain Medical Center, Murray, Utah.
2
Division of Infectious Diseases, Stanford University School of Medicine, California.
3
Division of Pediatric Infectious Diseases, University of Utah School of Medicine, Salt Lake City.
4
Department of Pharmacy, Intermountain Medical Center, Murray, Utah.
5
Study Design and Biostatistics Center, University of Utah School of Medicine, Salt Lake City.
6
Medical Informatics, Intermountain Healthcare, Salt Lake City.
7
Biomedical Informatics, University of Utah, Salt Lake City.
8
Division of Infectious Diseases, University of Utah School of Medicine, Salt Lake City.
9
Institute for Healthcare Delivery Research, Intermountain Healthcare, Salt Lake City.
10
Division of Pediatric Inpatient Medicine, University of Utah School of Medicine, Salt Lake City.

Abstract

Background:

Studies on the implementation of antibiotic stewardship programs (ASPs) in small hospitals are limited. Accreditation organizations now require all hospitals to have ASPs.

Methods:

The objective of this cluster-randomized intervention was to assess the effectiveness of implementing ASPs in Intermountain Healthcare's 15 small hospitals. Each hospital was randomized to 1 of 3 ASPs of escalating intensity. Program 1 hospitals were provided basic antibiotic stewardship education and tools, access to an infectious disease hotline, and antibiotic utilization data. Program 2 hospitals received those interventions plus advanced education, audit and feedback for select antibiotics, and locally controlled antibiotic restrictions. Program 3 hospitals received program 2 interventions plus audit and feedback on the majority of antibiotics, and an infectious diseases-trained clinician approved restricted antibiotics and reviewed microbiology results. Changes in total and broad-spectrum antibiotic use within programs (intervention versus baseline) and the difference between programs in the magnitude of change in antibiotic use (eg, program 3 vs 1) were evaluated with mixed models.

Results:

Program 3 hospitals showed reductions in total (rate ratio, 0.89; confidence interval, .80-.99) and broad-spectrum (0.76; .63-.91) antibiotic use when the intervention period was compared with the baseline period. Program 1 and 2 hospitals did not experience a reduction in antibiotic use. Comparison of the magnitude of effects between programs showed a similar trend favoring program 3, but this was not statistically significant.

Conclusions:

Only the most intensive ASP intervention was associated with reduction in total and broad-spectrum antibiotic use when compared with baseline.

Clinical Trials Registration:

NCT03245879.

PMID:
29790913
DOI:
10.1093/cid/ciy155
[Indexed for MEDLINE]

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