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Vaughn VM, Krein SL, Hersh AL, Buckel WR, White AT, Horowitz JK, Patel PK, Gandhi TN, Petty LA, Spivak ES, Bernstein SJ, Malani AN, Johnson LB, Neetz RA, Flanders SA, Galyean P, Kimball E, Bloomquist K, Zickmund T, Zickmund SL, Szymczak JE. Excellence in Antibiotic Stewardship: A Mixed-Methods Study Comparing High-, Medium-, and Low-Performing Hospitals. Clin Infect Dis 2024; 78:1412-1424. [PMID: 38059532 PMCID: PMC11153329 DOI: 10.1093/cid/ciad743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 11/13/2023] [Accepted: 12/01/2023] [Indexed: 12/08/2023] Open
Abstract
BACKGROUND Despite antibiotic stewardship programs existing in most acute care hospitals, there continues to be variation in appropriate antibiotic use. While existing research examines individual prescriber behavior, contextual reasons for variation are poorly understood. METHODS We conducted an explanatory, sequential mixed-methods study of a purposeful sample of 7 hospitals with varying discharge antibiotic overuse. For each hospital, we conducted surveys, document analysis, and semi-structured interviews with antibiotic stewardship and clinical stakeholders. Data were analyzed separately and mixed during the interpretation phase, where each hospital was examined as a case, with findings organized across cases using a strengths, weaknesses, opportunities, and threats framework to identify factors accounting for differences in antibiotic overuse across hospitals. RESULTS Surveys included 85 respondents. Interviews included 90 respondents (31 hospitalists, 33 clinical pharmacists, 14 stewardship leaders, 12 hospital leaders). On surveys, clinical pharmacists at hospitals with lower antibiotic overuse were more likely to report feeling: respected by hospitalist colleagues (P = .001), considered valuable team members (P = .001), and comfortable recommending antibiotic changes (P = .02). Based on mixed-methods analysis, hospitals with low antibiotic overuse had 4 distinguishing characteristics: (1) robust knowledge of and access to antibiotic stewardship guidance; (2) high-quality clinical pharmacist-physician relationships; (3) tools and infrastructure to support stewardship; and (4) highly engaged infectious diseases physicians who advocated stewardship principles. CONCLUSIONS This mixed-methods study demonstrates the importance of organizational context for high performance in stewardship and suggests that improving antimicrobial stewardship requires attention to knowledge, interactions, and relationships between clinical teams and infrastructure that supports stewardship and team interactions.
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Affiliation(s)
- Valerie M Vaughn
- Division of General Internal Medicine, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
- Division of Health System Innovation and Research, Department of Population Health Science, University of Utah School of Medicine, Salt Lake City, Utah, USA
- Division of Hospital Medicine, Department of Internal Medicine, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Sarah L Krein
- Center for Clinical Management Research, Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan, USA
- Division of General Medicine, Department of Internal Medicine, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Adam L Hersh
- Division of Infectious Diseases, Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Whitney R Buckel
- Intermountain Healthcare Pharmacy Services, Taylorsville, Utah, USA
| | - Andrea T White
- Division of General Internal Medicine, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Jennifer K Horowitz
- Division of Hospital Medicine, Department of Internal Medicine, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Payal K Patel
- Division of Infectious Diseases, Department of Medicine, Intermountain Health, Salt Lake City, Utah, USA
| | - Tejal N Gandhi
- Division of Infectious Diseases, Department of Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Lindsay A Petty
- Division of Infectious Diseases, Department of Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Emily S Spivak
- Division of Infectious Diseases, Department of Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Steven J Bernstein
- Center for Clinical Management Research, Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan, USA
- Division of General Medicine, Department of Internal Medicine, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Anurag N Malani
- Division of Infectious Diseases, Department of Internal Medicine, Trinity Health Michigan, Ann Arbor, Michigan, USA
| | - Leonard B Johnson
- Division of Infectious Diseases, Department of Internal Medicine, Ascension St John Hospital, Detroit, Michigan, USA
| | - Robert A Neetz
- Department of Pharmacy, MyMichigan Health, Midland, Michigan, USA
| | - Scott A Flanders
- Division of Hospital Medicine, Department of Internal Medicine, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Patrick Galyean
- Division of Epidemiology, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Elisabeth Kimball
- Division of Epidemiology, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Kennedi Bloomquist
- Division of Epidemiology, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Tobias Zickmund
- Division of Epidemiology, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Susan L Zickmund
- Division of Epidemiology, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
- Informatics, Decision-Enhancement and Analytic Sciences Center, Veterans Affairs Salt Lake City Healthcare System, Salt Lake City, Utah, USA
| | - Julia E Szymczak
- Division of Epidemiology, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
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